402993873 has 12 divisors (see below), whose sum is σ = 603661968. Its totient is φ = 268662420.

The previous prime is 402993827. The next prime is 402993881. The reversal of 402993873 is 378399204.

It is a happy number.

It is not a de Polignac number, because 402993873 - 2⁶ = 402993809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402993883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 828963 + ... + 829448.

It is an arithmetic number, because the mean of its divisors is an integer number (50305164).

Almost surely, 2^402993873 is an apocalyptic number.

It is an amenable number.

402993873 is a deficient number, since it is larger than the sum of its proper divisors (200668095).

402993873 is an equidigital number, since it uses as much as digits as its factorization.

402993873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658426 (or 1658414 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 402993873 is about 20074.7072955000. The cubic root of 402993873 is about 738.6399861944.

The spelling of 402993873 in words is "four hundred two million, nine hundred ninety-three thousand, eight hundred seventy-three".