400334492 has 6 divisors (see below), whose sum is σ = 700585368. Its totient is φ = 200167244.

The previous prime is 400334489. The next prime is 400334497. The reversal of 400334492 is 294433004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400334497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50041808 + ... + 50041815.

It is an arithmetic number, because the mean of its divisors is an integer number (116764228).

Almost surely, 2^400334492 is an apocalyptic number.

It is an amenable number.

400334492 is a deficient number, since it is larger than the sum of its proper divisors (300250876).

400334492 is a wasteful number, since it uses less digits than its factorization.

400334492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100083627 (or 100083625 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 400334492 is about 20008.3605525290. The cubic root of 400334492 is about 737.0116223504.

Adding to 400334492 its reverse (294433004), we get a palindrome (694767496).

The spelling of 400334492 in words is "four hundred million, three hundred thirty-four thousand, four hundred ninety-two".