401316252 has 24 divisors (see below), whose sum is σ = 985689600. Its totient is φ = 126731376.

The previous prime is 401316247. The next prime is 401316281. The reversal of 401316252 is 252613104.

It is a super-2 number, since 2×401316252² = 322109468238655008, 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 7 ways as a sum of consecutive naturals, for example, 879852 + ... + 880307.

It is an arithmetic number, because the mean of its divisors is an integer number (41070400).

Almost surely, 2^401316252 is an apocalyptic number.

It is an amenable number.

401316252 is an abundant number, since it is smaller than the sum of its proper divisors (584373348).

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

401316252 is a wasteful number, since it uses less digits than its factorization.

401316252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760185 (or 1760183 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 401316252 is about 20032.8792738338. The cubic root of 401316252 is about 737.6136005032.

Adding to 401316252 its reverse (252613104), we get a palindrome (653929356).

The spelling of 401316252 in words is "four hundred one million, three hundred sixteen thousand, two hundred fifty-two".