40737220 has 12 divisors (see below), whose sum is σ = 85548204. Its totient is φ = 16294880.

The previous prime is 40737217. The next prime is 40737241. The reversal of 40737220 is 2273704.

40737220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 26357956 + 14379264 = 5134^2 + 3792^2 .

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 3 ways as a sum of consecutive naturals, for example, 1018411 + ... + 1018450.

It is an arithmetic number, because the mean of its divisors is an integer number (7129017).

Almost surely, 2^40737220 is an apocalyptic number.

It is an amenable number.

40737220 is an abundant number, since it is smaller than the sum of its proper divisors (44810984).

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

40737220 is a wasteful number, since it uses less digits than its factorization.

40737220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036870 (or 2036868 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 40737220 is about 6382.5715820506. The cubic root of 40737220 is about 344.0834595587.

The spelling of 40737220 in words is "forty million, seven hundred thirty-seven thousand, two hundred twenty".