400494873 has 8 divisors (see below), whose sum is σ = 534225888. Its totient is φ = 266880224.

The previous prime is 400494851. The next prime is 400494889. The reversal of 400494873 is 378494004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400494873 - 2⁹ = 400494361 is a prime.

It is a super-2 number, since 2×400494873² = 320792286598572258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400494973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20715 + ... + 35072.

It is an arithmetic number, because the mean of its divisors is an integer number (66778236).

Almost surely, 2^400494873 is an apocalyptic number.

It is an amenable number.

400494873 is a deficient number, since it is larger than the sum of its proper divisors (133731015).

400494873 is a wasteful number, since it uses less digits than its factorization.

400494873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58183.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 400494873 is about 20012.3680008139. The cubic root of 400494873 is about 737.1100291262.

The spelling of 400494873 in words is "four hundred million, four hundred ninety-four thousand, eight hundred seventy-three".