36643992 has 128 divisors (see below), whose sum is σ = 116121600. Its totient is φ = 9360000.

The previous prime is 36643967. The next prime is 36644011. The reversal of 36643992 is 29934663.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145867 + ... + 146117.

It is an arithmetic number, because the mean of its divisors is an integer number (907200).

Almost surely, 2^36643992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36643992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58060800).

36643992 is an abundant number, since it is smaller than the sum of its proper divisors (79477608).

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

36643992 is a wasteful number, since it uses less digits than its factorization.

36643992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 353 counting only the distinct ones).

The product of its digits is 209952, while the sum is 42.

The square root of 36643992 is about 6053.4281196691. The cubic root of 36643992 is about 332.1500023767.

The spelling of 36643992 in words is "thirty-six million, six hundred forty-three thousand, nine hundred ninety-two".