40436320 has 24 divisors (see below), whose sum is σ = 95531184. Its totient is φ = 16174464.

The previous prime is 40436317. The next prime is 40436339. The reversal of 40436320 is 2363404.

It is a junction number, because it is equal to n+sod(n) for n = 40436291 and 40436300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126204 + ... + 126523.

It is an arithmetic number, because the mean of its divisors is an integer number (3980466).

Almost surely, 2^40436320 is an apocalyptic number.

40436320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40436320 is an abundant number, since it is smaller than the sum of its proper divisors (55094864).

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

40436320 is a wasteful number, since it uses less digits than its factorization.

40436320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252742 (or 252734 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 40436320 is about 6358.9558891378. The cubic root of 40436320 is about 343.2341896994.

Adding to 40436320 its reverse (2363404), we get a palindrome (42799724).

The spelling of 40436320 in words is "forty million, four hundred thirty-six thousand, three hundred twenty".