1040631030 has 128 divisors (see below), whose sum is σ = 2956124160. Its totient is φ = 259591680.

The previous prime is 1040631029. The next prime is 1040631037. The reversal of 1040631030 is 301360401.

1040631030 is a `hidden beast` number, since 1 + 0 + 4 + 0 + 631 + 0 + 30 = 666.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1040630994 and 1040631012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040631037) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 876097 + ... + 877283.

It is an arithmetic number, because the mean of its divisors is an integer number (23094720).

Almost surely, 2^1040631030 is an apocalyptic number.

1040631030 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 1040631030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1478062080).

1040631030 is an abundant number, since it is smaller than the sum of its proper divisors (1915493130).

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

1040631030 is a wasteful number, since it uses less digits than its factorization.

1040631030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411 (or 1405 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1040631030 is about 32258.8132143760. The cubic root of 1040631030 is about 1013.3642771262.

Adding to 1040631030 its reverse (301360401), we get a palindrome (1341991431).

The spelling of 1040631030 in words is "one billion, forty million, six hundred thirty-one thousand, thirty".