400334330 has 16 divisors (see below), whose sum is σ = 786111264. Its totient is φ = 145576080.

The previous prime is 400334327. The next prime is 400334393. The reversal of 400334330 is 33433004.

It is a happy 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, 1819592 + ... + 1819811.

It is an arithmetic number, because the mean of its divisors is an integer number (49131954).

Almost surely, 2^400334330 is an apocalyptic number.

400334330 is a deficient number, since it is larger than the sum of its proper divisors (385776934).

400334330 is a wasteful number, since it uses less digits than its factorization.

400334330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3639421.

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

The square root of 400334330 is about 20008.3565042209. The cubic root of 400334330 is about 737.0115229370.

Adding to 400334330 its reverse (33433004), we get a palindrome (433767334).

It can be divided in two parts, 40033 and 4330, that multiplied together give a triangular number (173342890 = T₁₈₆₁₉).

The spelling of 400334330 in words is "four hundred million, three hundred thirty-four thousand, three hundred thirty".