36891980 has 24 divisors (see below), whose sum is σ = 77792400. Its totient is φ = 14696000.

The previous prime is 36891949. The next prime is 36891983. The reversal of 36891980 is 8919863.

36891980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×36891980² = 2722036376640800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36891983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1346 + ... + 8694.

It is an arithmetic number, because the mean of its divisors is an integer number (3241350).

Almost surely, 2^36891980 is an apocalyptic number.

It is an amenable number.

36891980 is an abundant number, since it is smaller than the sum of its proper divisors (40900420).

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

36891980 is a wasteful number, since it uses less digits than its factorization.

36891980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7609 (or 7607 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 36891980 is about 6073.8768509083. The cubic root of 36891980 is about 332.8975928611.

The spelling of 36891980 in words is "thirty-six million, eight hundred ninety-one thousand, nine hundred eighty".