15402530020 has 24 divisors (see below), whose sum is σ = 32449330368. Its totient is φ = 6141199200.

The previous prime is 15402529999. The next prime is 15402530047. The reversal of 15402530020 is 2003520451.

It is a junction number, because it is equal to n+sod(n) for n = 15402529973 and 15402530000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1231926 + ... + 1244365.

It is an arithmetic number, because the mean of its divisors is an integer number (1352055432).

Almost surely, 2^15402530020 is an apocalyptic number.

15402530020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15402530020 is an abundant number, since it is smaller than the sum of its proper divisors (17046800348).

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

15402530020 is a wasteful number, since it uses less digits than its factorization.

15402530020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2476611 (or 2476609 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The spelling of 15402530020 in words is "fifteen billion, four hundred two million, five hundred thirty thousand, twenty".