401808412 has 24 divisors (see below), whose sum is σ = 710284400. Its totient is φ = 198878976.

The previous prime is 401808343. The next prime is 401808431. The reversal of 401808412 is 214808104.

It is a super-2 number, since 2×401808412² = 322899999907923488, 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, 239914 + ... + 241582.

Almost surely, 2^401808412 is an apocalyptic number.

It is an amenable number.

401808412 is a deficient number, since it is larger than the sum of its proper divisors (308475988).

401808412 is a wasteful number, since it uses less digits than its factorization.

401808412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245 (or 2243 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 401808412 is about 20045.1593159047. The cubic root of 401808412 is about 737.9150050347.

The spelling of 401808412 in words is "four hundred one million, eight hundred eight thousand, four hundred twelve".