400106412 has 24 divisors (see below), whose sum is σ = 1037313200. Its totient is φ = 133368768.

The previous prime is 400106411. The next prime is 400106461. The reversal of 400106412 is 214601004.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (400106411) 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, 1852237 + ... + 1852452.

Almost surely, 2^400106412 is an apocalyptic number.

It is an amenable number.

400106412 is an abundant number, since it is smaller than the sum of its proper divisors (637206788).

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

400106412 is a wasteful number, since it uses less digits than its factorization.

400106412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3704702 (or 3704694 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 400106412 is about 20002.6601230936. The cubic root of 400106412 is about 736.8716314617.

Adding to 400106412 its reverse (214601004), we get a palindrome (614707416).

The spelling of 400106412 in words is "four hundred million, one hundred six thousand, four hundred twelve".