402004858 has 8 divisors (see below), whose sum is σ = 603653652. Its totient is φ = 200786976.

The previous prime is 402004849. The next prime is 402004871. The reversal of 402004858 is 858400204.

It can be written as a sum of positive squares in 2 ways, for example, as 248913729 + 153091129 = 15777^2 + 12373^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105385 + ... + 109132.

Almost surely, 2^402004858 is an apocalyptic number.

402004858 is a deficient number, since it is larger than the sum of its proper divisors (201648794).

402004858 is a wasteful number, since it uses less digits than its factorization.

402004858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215456.

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 402004858 is about 20050.0588029063. The cubic root of 402004858 is about 738.0352421338.

The spelling of 402004858 in words is "four hundred two million, four thousand, eight hundred fifty-eight".