400233012 has 48 divisors (see below), whose sum is σ = 966911232. Its totient is φ = 128770560.

The previous prime is 400232999. The next prime is 400233037. The reversal of 400233012 is 210332004.

It is a junction number, because it is equal to n+sod(n) for n = 400232982 and 400233000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36312 + ... + 46032.

It is an arithmetic number, because the mean of its divisors is an integer number (20143984).

Almost surely, 2^400233012 is an apocalyptic number.

It is an amenable number.

400233012 is an abundant number, since it is smaller than the sum of its proper divisors (566678220).

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

400233012 is a wasteful number, since it uses less digits than its factorization.

400233012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9848 (or 9846 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 400233012 is about 20005.8244518940. The cubic root of 400233012 is about 736.9493425474.

Adding to 400233012 its reverse (210332004), we get a palindrome (610565016).

The spelling of 400233012 in words is "four hundred million, two hundred thirty-three thousand, twelve".