15403028480 has 156 divisors (see below), whose sum is σ = 43000292700. Its totient is φ = 5280694272.

The previous prime is 15403028467. The next prime is 15403028519. The reversal of 15403028480 is 8482030451.

It can be written as a sum of positive squares in 2 ways, for example, as 5332504576 + 10070523904 = 73024^2 + 100352^2 .

It is a super-2 number, since 2×15403028480² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 15403028480.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 995846 + ... + 1011194.

Almost surely, 2^15403028480 is an apocalyptic number.

15403028480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15403028480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21500146350).

15403028480 is an abundant number, since it is smaller than the sum of its proper divisors (27597264220).

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

15403028480 is an equidigital number, since it uses as much as digits as its factorization.

15403028480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15392 (or 15363 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The spelling of 15403028480 in words is "fifteen billion, four hundred three million, twenty-eight thousand, four hundred eighty".