36231840 has 96 divisors (see below), whose sum is σ = 126826560. Its totient is φ = 9660672.

The previous prime is 36231829. The next prime is 36231847. The reversal of 36231840 is 4813263.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (36231847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127 + ... + 8513.

It is an arithmetic number, because the mean of its divisors is an integer number (1321110).

Almost surely, 2^36231840 is an apocalyptic number.

36231840 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 36231840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63413280).

36231840 is an abundant number, since it is smaller than the sum of its proper divisors (90594720).

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

36231840 is a wasteful number, since it uses less digits than its factorization.

36231840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8411 (or 8397 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 36231840 is about 6019.2889945574. The cubic root of 36231840 is about 330.9000224394.

The spelling of 36231840 in words is "thirty-six million, two hundred thirty-one thousand, eight hundred forty".