1530250040 has 32 divisors (see below), whose sum is σ = 3756069360. Its totient is φ = 556454400.

The previous prime is 1530250039. The next prime is 1530250067. The reversal of 1530250040 is 400520351.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1530249994 and 1530250021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1738481 + ... + 1739360.

Almost surely, 2^1530250040 is an apocalyptic number.

1530250040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1530250040 is an abundant number, since it is smaller than the sum of its proper divisors (2225819320).

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

1530250040 is a wasteful number, since it uses less digits than its factorization.

1530250040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3477863 (or 3477859 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1530250040 is about 39118.4104994055. The cubic root of 1530250040 is about 1152.3581203185.

Adding to 1530250040 its reverse (400520351), we get a palindrome (1930770391).

The spelling of 1530250040 in words is "one billion, five hundred thirty million, two hundred fifty thousand, forty".