401511352 has 32 divisors (see below), whose sum is σ = 822075120. Its totient is φ = 182327040.

The previous prime is 401511323. The next prime is 401511353. The reversal of 401511352 is 253115104.

It is a happy number.

It is a super-2 number, since 2×401511352² = 322422731569735808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401511353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139108 + ... + 141964.

Almost surely, 2^401511352 is an apocalyptic number.

It is an amenable number.

401511352 is an abundant number, since it is smaller than the sum of its proper divisors (420563768).

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

401511352 is a wasteful number, since it uses less digits than its factorization.

401511352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4471 (or 4467 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 401511352 is about 20037.7481768786. The cubic root of 401511352 is about 737.7331114862.

Adding to 401511352 its reverse (253115104), we get a palindrome (654626456).

The spelling of 401511352 in words is "four hundred one million, five hundred eleven thousand, three hundred fifty-two".