400254356 has 12 divisors (see below), whose sum is σ = 704002068. Its totient is φ = 199110912.

The previous prime is 400254347. The next prime is 400254377. The reversal of 400254356 is 653452004.

It can be written as a sum of positive squares in 2 ways, for example, as 379860100 + 20394256 = 19490^2 + 4516^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 253181 + ... + 254756.

It is an arithmetic number, because the mean of its divisors is an integer number (58666839).

Almost surely, 2^400254356 is an apocalyptic number.

It is an amenable number.

400254356 is a deficient number, since it is larger than the sum of its proper divisors (303747712).

400254356 is a wasteful number, since it uses less digits than its factorization.

400254356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508138 (or 508136 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 400254356 is about 20006.3578894310. The cubic root of 400254356 is about 736.9624425555.

The spelling of 400254356 in words is "four hundred million, two hundred fifty-four thousand, three hundred fifty-six".