400939246 has 16 divisors (see below), whose sum is σ = 619023888. Its totient is φ = 194644800.

The previous prime is 400939229. The next prime is 400939247. The reversal of 400939246 is 642939004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400939247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5716 + ... + 28888.

It is an arithmetic number, because the mean of its divisors is an integer number (38688993).

Almost surely, 2^400939246 is an apocalyptic number.

400939246 is a deficient number, since it is larger than the sum of its proper divisors (218084642).

400939246 is a wasteful number, since it uses less digits than its factorization.

400939246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23427.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 400939246 is about 20023.4673820495. The cubic root of 400939246 is about 737.3825509033.

The spelling of 400939246 in words is "four hundred million, nine hundred thirty-nine thousand, two hundred forty-six".