670818404 has 24 divisors (see below), whose sum is σ = 1226805888. Its totient is φ = 320634720.

The previous prime is 670818397. The next prime is 670818409. The reversal of 670818404 is 404818076.

It is a super-2 number, since 2×670818404² = 899994662290214432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (670818409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33407 + ... + 49574.

It is an arithmetic number, because the mean of its divisors is an integer number (51116912).

Almost surely, 2^670818404 is an apocalyptic number.

It is an amenable number.

670818404 is a deficient number, since it is larger than the sum of its proper divisors (555987484).

670818404 is a wasteful number, since it uses less digits than its factorization.

670818404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83075 (or 83073 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 670818404 is about 25900.1622388741. The cubic root of 670818404 is about 875.3901515615.

The spelling of 670818404 in words is "six hundred seventy million, eight hundred eighteen thousand, four hundred four".