400477792 has 48 divisors (see below), whose sum is σ = 926290512. Its totient is φ = 168030720.

The previous prime is 400477787. The next prime is 400477793. The reversal of 400477792 is 297774004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400477793) 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, 39183 + ... + 48334.

It is an arithmetic number, because the mean of its divisors is an integer number (19297719).

Almost surely, 2^400477792 is an apocalyptic number.

It is an amenable number.

400477792 is an abundant number, since it is smaller than the sum of its proper divisors (525812720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400477792 is a wasteful number, since it uses less digits than its factorization.

400477792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87551 (or 87543 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 400477792 is about 20011.9412351726. The cubic root of 400477792 is about 737.0995497949.

It can be divided in two parts, 4004 and 77792, that added together give a square (81796 = 286²).

The spelling of 400477792 in words is "four hundred million, four hundred seventy-seven thousand, seven hundred ninety-two".