401412252 has 24 divisors (see below), whose sum is σ = 940367232. Its totient is φ = 133270000.

The previous prime is 401412199. The next prime is 401412257. The reversal of 401412252 is 252214104.

It is a super-2 number, since 2×401412252² = 322263592111423008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401412257) 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, 63624 + ... + 69647.

It is an arithmetic number, because the mean of its divisors is an integer number (39181968).

Almost surely, 2^401412252 is an apocalyptic number.

It is an amenable number.

401412252 is an abundant number, since it is smaller than the sum of its proper divisors (538954980).

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

401412252 is a wasteful number, since it uses less digits than its factorization.

401412252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133529 (or 133527 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 401412252 is about 20035.2751915216. The cubic root of 401412252 is about 737.6724113618.

Adding to 401412252 its reverse (252214104), we get a palindrome (653626356).

The spelling of 401412252 in words is "four hundred one million, four hundred twelve thousand, two hundred fifty-two".