401004216 has 64 divisors (see below), whose sum is σ = 1115539200. Its totient is φ = 133471584.

The previous prime is 401004203. The next prime is 401004223. The reversal of 401004216 is 612400104.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276405 + ... + 277851.

It is an arithmetic number, because the mean of its divisors is an integer number (17430300).

Almost surely, 2^401004216 is an apocalyptic number.

It is an amenable number.

401004216 is an abundant number, since it is smaller than the sum of its proper divisors (714534984).

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

401004216 is a wasteful number, since it uses less digits than its factorization.

401004216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745 (or 2735 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 401004216 is about 20025.0896627206. The cubic root of 401004216 is about 737.4223783479.

The spelling of 401004216 in words is "four hundred one million, four thousand, two hundred sixteen".