401212312 has 16 divisors (see below), whose sum is σ = 772605360. Its totient is φ = 195184224.

The previous prime is 401212283. The next prime is 401212313. The reversal of 401212312 is 213212104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401212313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677428 + ... + 678019.

It is an arithmetic number, because the mean of its divisors is an integer number (48287835).

Almost surely, 2^401212312 is an apocalyptic number.

It is an amenable number.

401212312 is a deficient number, since it is larger than the sum of its proper divisors (371393048).

401212312 is a wasteful number, since it uses less digits than its factorization.

401212312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355490 (or 1355486 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 401212312 is about 20030.2848706652. The cubic root of 401212312 is about 737.5499149210.

Adding to 401212312 its reverse (213212104), we get a palindrome (614424416).

The spelling of 401212312 in words is "four hundred one million, two hundred twelve thousand, three hundred twelve".