401564382 has 8 divisors (see below), whose sum is σ = 803128776. Its totient is φ = 133854792.

The previous prime is 401564369. The next prime is 401564413. The reversal of 401564382 is 283465104.

It is a sphenic number, since it is the product of 3 distinct primes.

401564382 is an admirable number.

It is a super-2 number, since 2×401564382² = 322507905782083848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33463693 + ... + 33463704.

It is an arithmetic number, because the mean of its divisors is an integer number (100391097).

Almost surely, 2^401564382 is an apocalyptic number.

401564382 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

401564382 is a wasteful number, since it uses less digits than its factorization.

401564382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66927402.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 401564382 is about 20039.0713856705. The cubic root of 401564382 is about 737.7655889944.

The spelling of 401564382 in words is "four hundred one million, five hundred sixty-four thousand, three hundred eighty-two".