36891380 has 12 divisors (see below), whose sum is σ = 77471940. Its totient is φ = 14756544.

The previous prime is 36891319. The next prime is 36891383. The reversal of 36891380 is 8319863.

It can be written as a sum of positive squares in 2 ways, for example, as 11751184 + 25140196 = 3428^2 + 5014^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36891383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 922265 + ... + 922304.

It is an arithmetic number, because the mean of its divisors is an integer number (6455995).

Almost surely, 2^36891380 is an apocalyptic number.

It is an amenable number.

36891380 is an abundant number, since it is smaller than the sum of its proper divisors (40580560).

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

36891380 is a wasteful number, since it uses less digits than its factorization.

36891380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844578 (or 1844576 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 36891380 is about 6073.8274588599. The cubic root of 36891380 is about 332.8957881361.

The spelling of 36891380 in words is "thirty-six million, eight hundred ninety-one thousand, three hundred eighty".