400433330 has 32 divisors (see below), whose sum is σ = 787250880. Its totient is φ = 145437120.

The previous prime is 400433323. The next prime is 400433357. The reversal of 400433330 is 33334004.

It is a happy 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, 121241 + ... + 124499.

It is an arithmetic number, because the mean of its divisors is an integer number (24601590).

Almost surely, 2^400433330 is an apocalyptic number.

400433330 is a deficient number, since it is larger than the sum of its proper divisors (386817550).

400433330 is a wasteful number, since it uses less digits than its factorization.

400433330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4394.

The product of its (nonzero) digits is 1296, while the sum is 20.

The square root of 400433330 is about 20010.8303176055. The cubic root of 400433330 is about 737.0722706018.

Adding to 400433330 its reverse (33334004), we get a palindrome (433767334).

The spelling of 400433330 in words is "four hundred million, four hundred thirty-three thousand, three hundred thirty".