18980670 has 32 divisors (see below), whose sum is σ = 48234528. Its totient is φ = 4763648.

The previous prime is 18980659. The next prime is 18980683. The reversal of 18980670 is 7608981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18099 + ... + 19118.

It is an arithmetic number, because the mean of its divisors is an integer number (1507329).

Almost surely, 2^18980670 is an apocalyptic number.

18980670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18980670 is an abundant number, since it is smaller than the sum of its proper divisors (29253858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18980670 is a wasteful number, since it uses less digits than its factorization.

18980670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37244.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 18980670 is about 4356.6810762322. The cubic root of 18980670 is about 266.7496425813.

The spelling of 18980670 in words is "eighteen million, nine hundred eighty thousand, six hundred seventy".