36039820 has 24 divisors (see below), whose sum is σ = 77531328. Its totient is φ = 14064000.

The previous prime is 36039799. The next prime is 36039893. The reversal of 36039820 is 2893063.

It is a happy number.

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, 21156 + ... + 22795.

It is an arithmetic number, because the mean of its divisors is an integer number (3230472).

Almost surely, 2^36039820 is an apocalyptic number.

It is an amenable number.

36039820 is an abundant number, since it is smaller than the sum of its proper divisors (41491508).

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

36039820 is a wasteful number, since it uses less digits than its factorization.

36039820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44001 (or 43999 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 36039820 is about 6003.3174162291. The cubic root of 36039820 is about 330.3144233104.

The spelling of 36039820 in words is "thirty-six million, thirty-nine thousand, eight hundred twenty".