406013856 has 48 divisors (see below), whose sum is σ = 1128484224. Its totient is φ = 127376384.

The previous prime is 406013849. The next prime is 406013863. The reversal of 406013856 is 658310604.

It is an interprime number because it is at equal distance from previous prime (406013849) and next prime (406013863).

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122760 + ... + 126023.

It is an arithmetic number, because the mean of its divisors is an integer number (23510088).

Almost surely, 2^406013856 is an apocalyptic number.

It is an amenable number.

406013856 is an abundant number, since it is smaller than the sum of its proper divisors (722470368).

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

406013856 is a wasteful number, since it uses less digits than its factorization.

406013856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248813 (or 248805 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 406013856 is about 20149.7855075433. The cubic root of 406013856 is about 740.4804865860.

The spelling of 406013856 in words is "four hundred six million, thirteen thousand, eight hundred fifty-six".