400828874 has 8 divisors (see below), whose sum is σ = 615907908. Its totient is φ = 195526240.

The previous prime is 400828871. The next prime is 400828919. The reversal of 400828874 is 478828004.

It can be written as a sum of positive squares in 2 ways, for example, as 400200025 + 628849 = 20005^2 + 793^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (400828871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2443997 + ... + 2444160.

Almost surely, 2^400828874 is an apocalyptic number.

400828874 is a deficient number, since it is larger than the sum of its proper divisors (215079034).

400828874 is a wasteful number, since it uses less digits than its factorization.

400828874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4888200.

The product of its (nonzero) digits is 114688, while the sum is 41.

The square root of 400828874 is about 20020.7111262313. The cubic root of 400828874 is about 737.3148815852.

The spelling of 400828874 in words is "four hundred million, eight hundred twenty-eight thousand, eight hundred seventy-four".