400704766 has 16 divisors (see below), whose sum is σ = 749370240. Its totient is φ = 156118680.

The previous prime is 400704763. The next prime is 400704797. The reversal of 400704766 is 667407004.

It is a super-2 number, since 2×400704766² = 321128618990229512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400704763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1300836 + ... + 1301143.

It is an arithmetic number, because the mean of its divisors is an integer number (46835640).

Almost surely, 2^400704766 is an apocalyptic number.

400704766 is a deficient number, since it is larger than the sum of its proper divisors (348665474).

400704766 is a wasteful number, since it uses less digits than its factorization.

400704766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601999.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 400704766 is about 20017.6113959683. The cubic root of 400704766 is about 737.2387758559.

The spelling of 400704766 in words is "four hundred million, seven hundred four thousand, seven hundred sixty-six".