401400412 has 24 divisors (see below), whose sum is σ = 803464704. Its totient is φ = 171886512.

The previous prime is 401400409. The next prime is 401400437. The reversal of 401400412 is 214004104.

It is a super-2 number, since 2×401400412² = 322244581507539488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33033 + ... + 43519.

It is an arithmetic number, because the mean of its divisors is an integer number (33477696).

Almost surely, 2^401400412 is an apocalyptic number.

It is an amenable number.

401400412 is an abundant number, since it is smaller than the sum of its proper divisors (402064292).

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

401400412 is a wasteful number, since it uses less digits than its factorization.

401400412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11865 (or 11863 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 401400412 is about 20034.9797104963. The cubic root of 401400412 is about 737.6651585295.

Adding to 401400412 its reverse (214004104), we get a palindrome (615404516).

The spelling of 401400412 in words is "four hundred one million, four hundred thousand, four hundred twelve".