36489820 has 24 divisors (see below), whose sum is σ = 81136944. Its totient is φ = 13737216.

The previous prime is 36489787. The next prime is 36489829. The reversal of 36489820 is 2898463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36489829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53322 + ... + 54001.

It is an arithmetic number, because the mean of its divisors is an integer number (3380706).

Almost surely, 2^36489820 is an apocalyptic number.

It is an amenable number.

36489820 is an abundant number, since it is smaller than the sum of its proper divisors (44647124).

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

36489820 is a wasteful number, since it uses less digits than its factorization.

36489820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107349 (or 107347 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 36489820 is about 6040.6804252501. The cubic root of 36489820 is about 331.6835301421.

The spelling of 36489820 in words is "thirty-six million, four hundred eighty-nine thousand, eight hundred twenty".