36981812 has 24 divisors (see below), whose sum is σ = 74859456. Its totient is φ = 15657408.

The previous prime is 36981803. The next prime is 36981827. The reversal of 36981812 is 21818963.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5633 + ... + 10280.

It is an arithmetic number, because the mean of its divisors is an integer number (3119144).

Almost surely, 2^36981812 is an apocalyptic number.

It is an amenable number.

36981812 is an abundant number, since it is smaller than the sum of its proper divisors (37877644).

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

36981812 is a wasteful number, since it uses less digits than its factorization.

36981812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16007 (or 16005 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 36981812 is about 6081.2673021337. The cubic root of 36981812 is about 333.1675758092.

The spelling of 36981812 in words is "thirty-six million, nine hundred eighty-one thousand, eight hundred twelve".