15284460840 has 64 divisors (see below), whose sum is σ = 50021876160. Its totient is φ = 3705323520.

The previous prime is 15284460839. The next prime is 15284460847. The reversal of 15284460840 is 4806448251.

It is a super-2 number, since 2×15284460840² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15284460792 and 15284460801.

It is not an unprimeable number, because it can be changed into a prime (15284460847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5788249 + ... + 5790888.

It is an arithmetic number, because the mean of its divisors is an integer number (781591815).

Almost surely, 2^15284460840 is an apocalyptic number.

15284460840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15284460840 is an abundant number, since it is smaller than the sum of its proper divisors (34737415320).

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

15284460840 is a wasteful number, since it uses less digits than its factorization.

15284460840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11579162 (or 11579158 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 42.

The spelling of 15284460840 in words is "fifteen billion, two hundred eighty-four million, four hundred sixty thousand, eight hundred forty".