36840780 has 72 divisors (see below), whose sum is σ = 113677200. Its totient is φ = 9654912.

The previous prime is 36840763. The next prime is 36840787. The reversal of 36840780 is 8704863.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (36840787) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8886 + ... + 12354.

It is an arithmetic number, because the mean of its divisors is an integer number (1578850).

Almost surely, 2^36840780 is an apocalyptic number.

36840780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36840780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56838600).

36840780 is an abundant number, since it is smaller than the sum of its proper divisors (76836420).

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

36840780 is a wasteful number, since it uses less digits than its factorization.

36840780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543 (or 3538 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 36840780 is about 6069.6606165419. The cubic root of 36840780 is about 332.7435191956.

The spelling of 36840780 in words is "thirty-six million, eight hundred forty thousand, seven hundred eighty".