15420996 has 24 divisors (see below), whose sum is σ = 39980640. Its totient is φ = 5140296.

The previous prime is 15420991. The next prime is 15421001. The reversal of 15420996 is 69902451.

15420996 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (15420991) and next prime (15421001).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 15420996.

It is not an unprimeable number, because it can be changed into a prime (15420991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71286 + ... + 71501.

It is an arithmetic number, because the mean of its divisors is an integer number (1665860).

Almost surely, 2^15420996 is an apocalyptic number.

It is an amenable number.

15420996 is an abundant number, since it is smaller than the sum of its proper divisors (24559644).

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

15420996 is a wasteful number, since it uses less digits than its factorization.

15420996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142800 (or 142792 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 15420996 is about 3926.9576009934. The cubic root of 15420996 is about 248.9072088568.

The spelling of 15420996 in words is "fifteen million, four hundred twenty thousand, nine hundred ninety-six".