8440402 has 8 divisors (see below), whose sum is σ = 13211136. Its totient is φ = 4036692.

The previous prime is 8440391. The next prime is 8440423. The reversal of 8440402 is 2040448.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91698 + ... + 91789.

It is an arithmetic number, because the mean of its divisors is an integer number (1651392).

Almost surely, 2^8440402 is an apocalyptic number.

8440402 is a deficient number, since it is larger than the sum of its proper divisors (4770734).

8440402 is a wasteful number, since it uses less digits than its factorization.

8440402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183512.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 8440402 is about 2905.2369954962. The cubic root of 8440402 is about 203.6046585394.

The spelling of 8440402 in words is "eight million, four hundred forty thousand, four hundred two".