401913216 has 48 divisors (see below), whose sum is σ = 1156550460. Its totient is φ = 133970688.

The previous prime is 401913199. The next prime is 401913229. The reversal of 401913216 is 612319104.

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

It is a self number, because there is not a number n which added to its sum of digits gives 401913216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 173290 + ... + 175593.

Almost surely, 2^401913216 is an apocalyptic number.

It is an amenable number.

401913216 is an abundant number, since it is smaller than the sum of its proper divisors (754637244).

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

401913216 is a wasteful number, since it uses less digits than its factorization.

401913216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348903 (or 348888 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 401913216 is about 20047.7733426932. The cubic root of 401913216 is about 737.9791564387.

The spelling of 401913216 in words is "four hundred one million, nine hundred thirteen thousand, two hundred sixteen".