400373875 has 48 divisors (see below), whose sum is σ = 556710336. Its totient is φ = 287232000.

The previous prime is 400373873. The next prime is 400373881. The reversal of 400373875 is 578373004.

It is not a de Polignac number, because 400373875 - 2¹ = 400373873 is a prime.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400373873) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1557747 + ... + 1558003.

It is an arithmetic number, because the mean of its divisors is an integer number (11598132).

Almost surely, 2^400373875 is an apocalyptic number.

400373875 is a deficient number, since it is larger than the sum of its proper divisors (156336461).

400373875 is a wasteful number, since it uses less digits than its factorization.

400373875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 400373875 is about 20009.3446919183. The cubic root of 400373875 is about 737.0357894553.

The spelling of 400373875 in words is "four hundred million, three hundred seventy-three thousand, eight hundred seventy-five".