400033412 has 24 divisors (see below), whose sum is σ = 706708800. Its totient is φ = 198124640.

The previous prime is 400033399. The next prime is 400033421. The reversal of 400033412 is 214330004.

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, 291953 + ... + 293319.

It is an arithmetic number, because the mean of its divisors is an integer number (29446200).

Almost surely, 2^400033412 is an apocalyptic number.

It is an amenable number.

400033412 is a deficient number, since it is larger than the sum of its proper divisors (306675388).

400033412 is a wasteful number, since it uses less digits than its factorization.

400033412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011 (or 2009 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 400033412 is about 20000.8352825576. The cubic root of 400033412 is about 736.8268143003.

Adding to 400033412 its reverse (214330004), we get a palindrome (614363416).

The spelling of 400033412 in words is "four hundred million, thirty-three thousand, four hundred twelve".