40809360 has 80 divisors (see below), whose sum is σ = 132027264. Its totient is φ = 10407936.

The previous prime is 40809323. The next prime is 40809407. The reversal of 40809360 is 6390804.

40809360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1824 + ... + 9216.

Almost surely, 2^40809360 is an apocalyptic number.

40809360 is a gapful number since it is divisible by the number (40) 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 40809360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66013632).

40809360 is an abundant number, since it is smaller than the sum of its proper divisors (91217904).

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

40809360 is a wasteful number, since it uses less digits than its factorization.

40809360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7432 (or 7426 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 40809360 is about 6388.2204094724. The cubic root of 40809360 is about 344.2864479066.

The spelling of 40809360 in words is "forty million, eight hundred nine thousand, three hundred sixty".