15420510400 has 42 divisors (see below), whose sum is σ = 37944097340. Its totient is φ = 6168203520.

The previous prime is 15420510361. The next prime is 15420510401. The reversal of 15420510400 is 401502451.

It is not an unprimeable number, because it can be changed into a prime (15420510401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4817310 + ... + 4820509.

Almost surely, 2^15420510400 is an apocalyptic number.

15420510400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15420510400 is an abundant number, since it is smaller than the sum of its proper divisors (22523586940).

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

15420510400 is an equidigital number, since it uses as much as digits as its factorization.

15420510400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9637841 (or 9637826 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The spelling of 15420510400 in words is "fifteen billion, four hundred twenty million, five hundred ten thousand, four hundred".