401344536 has 16 divisors (see below), whose sum is σ = 1003361400. Its totient is φ = 133781504.

The previous prime is 401344529. The next prime is 401344579. The reversal of 401344536 is 635443104.

It is a super-2 number, since 2×401344536² = 322154873154110592, 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, 8361321 + ... + 8361368.

Almost surely, 2^401344536 is an apocalyptic number.

It is an amenable number.

401344536 is an abundant number, since it is smaller than the sum of its proper divisors (602016864).

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

401344536 is a wasteful number, since it uses less digits than its factorization.

401344536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16722698 (or 16722694 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 401344536 is about 20033.5852008571. The cubic root of 401344536 is about 737.6309286269.

The spelling of 401344536 in words is "four hundred one million, three hundred forty-four thousand, five hundred thirty-six".