18980212 has 12 divisors (see below), whose sum is σ = 34025796. Its totient is φ = 9258560.

The previous prime is 18980167. The next prime is 18980231. The reversal of 18980212 is 21208981.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 781456 + 18198756 = 884^2 + 4266^2 .

It is a congruent number.

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, 57703 + ... + 58030.

It is an arithmetic number, because the mean of its divisors is an integer number (2835483).

Almost surely, 2^18980212 is an apocalyptic number.

It is an amenable number.

18980212 is a deficient number, since it is larger than the sum of its proper divisors (15045584).

18980212 is a wasteful number, since it uses less digits than its factorization.

18980212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115778 (or 115776 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 18980212 is about 4356.6285129673. The cubic root of 18980212 is about 266.7474970245.

The spelling of 18980212 in words is "eighteen million, nine hundred eighty thousand, two hundred twelve".