400494200 has 24 divisors (see below), whose sum is σ = 931149480. Its totient is φ = 160197600.

The previous prime is 400494197. The next prime is 400494209. The reversal of 400494200 is 2494004.

It is a happy number.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400494209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1001036 + ... + 1001435.

It is an arithmetic number, because the mean of its divisors is an integer number (38797895).

Almost surely, 2^400494200 is an apocalyptic number.

400494200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400494200 is an abundant number, since it is smaller than the sum of its proper divisors (530655280).

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

400494200 is a wasteful number, since it uses less digits than its factorization.

400494200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002487 (or 2002478 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 400494200 is about 20012.3511862050. The cubic root of 400494200 is about 737.1096162409.

The spelling of 400494200 in words is "four hundred million, four hundred ninety-four thousand, two hundred".