1540041030 has 96 divisors (see below), whose sum is σ = 4387836960. Its totient is φ = 371658240.

The previous prime is 1540041023. The next prime is 1540041037. The reversal of 1540041030 is 301400451.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1540041023) and next prime (1540041037).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1540040994 and 1540041012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540041037) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 223314 + ... + 230106.

It is an arithmetic number, because the mean of its divisors is an integer number (45706635).

Almost surely, 2^1540041030 is an apocalyptic number.

1540041030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1540041030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2193918480).

1540041030 is an abundant number, since it is smaller than the sum of its proper divisors (2847795930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1540041030 is a wasteful number, since it uses less digits than its factorization.

1540041030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7046 (or 7043 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1540041030 is about 39243.3565078218. The cubic root of 1540041030 is about 1154.8106059274.

Adding to 1540041030 its reverse (301400451), we get a palindrome (1841441481).

The spelling of 1540041030 in words is "one billion, five hundred forty million, forty-one thousand, thirty".