40801536 has 72 divisors (see below), whose sum is σ = 120677760. Its totient is φ = 13598208.

The previous prime is 40801511. The next prime is 40801583. The reversal of 40801536 is 63510804.

It is a tau number, because it is divible by the number of its divisors (72).

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

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, 3961 + ... + 9863.

It is an arithmetic number, because the mean of its divisors is an integer number (1676080).

Almost surely, 2^40801536 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 40801536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60338880).

40801536 is an abundant number, since it is smaller than the sum of its proper divisors (79876224).

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

40801536 is an equidigital number, since it uses as much as digits as its factorization.

40801536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5928 (or 5908 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 40801536 is about 6387.6080030008. The cubic root of 40801536 is about 344.2644442181.

The spelling of 40801536 in words is "forty million, eight hundred one thousand, five hundred thirty-six".