400750427 has 12 divisors (see below), whose sum is σ = 503423088. Its totient is φ = 312272400.

The previous prime is 400750403. The next prime is 400750429. The reversal of 400750427 is 724057004.

It is not a de Polignac number, because 400750427 - 2⁸ = 400750171 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 400750427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400750429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235724 + ... + 237417.

It is an arithmetic number, because the mean of its divisors is an integer number (41951924).

Almost surely, 2^400750427 is an apocalyptic number.

400750427 is a deficient number, since it is larger than the sum of its proper divisors (102672661).

400750427 is a wasteful number, since it uses less digits than its factorization.

400750427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473170 (or 473159 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 400750427 is about 20018.7518841710. The cubic root of 400750427 is about 737.2667780028.

The spelling of 400750427 in words is "four hundred million, seven hundred fifty thousand, four hundred twenty-seven".