40244320 has 24 divisors (see below), whose sum is σ = 95077584. Its totient is φ = 16097664.

The previous prime is 40244317. The next prime is 40244341. The reversal of 40244320 is 2344204.

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, 125604 + ... + 125923.

It is an arithmetic number, because the mean of its divisors is an integer number (3961566).

Almost surely, 2^40244320 is an apocalyptic number.

40244320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40244320 is an abundant number, since it is smaller than the sum of its proper divisors (54833264).

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

40244320 is a wasteful number, since it uses less digits than its factorization.

40244320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251542 (or 251534 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 40244320 is about 6343.8411077201. The cubic root of 40244320 is about 342.6900786607.

Adding to 40244320 its reverse (2344204), we get a palindrome (42588524).

The spelling of 40244320 in words is "forty million, two hundred forty-four thousand, three hundred twenty".