36851840 has 64 divisors (see below), whose sum is σ = 89449920. Its totient is φ = 14515200.

The previous prime is 36851833. The next prime is 36851873. The reversal of 36851840 is 4815863.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×36851840² = 2716116222771200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 36851840.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45035 + ... + 45845.

It is an arithmetic number, because the mean of its divisors is an integer number (1397655).

Almost surely, 2^36851840 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 36851840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44724960).

36851840 is an abundant number, since it is smaller than the sum of its proper divisors (52598080).

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

36851840 is an equidigital number, since it uses as much as digits as its factorization.

36851840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901 (or 889 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 36851840 is about 6070.5716370042. The cubic root of 36851840 is about 332.7768135967.

The spelling of 36851840 in words is "thirty-six million, eight hundred fifty-one thousand, eight hundred forty".