40125320 has 16 divisors (see below), whose sum is σ = 90282060. Its totient is φ = 16050112.

The previous prime is 40125313. The next prime is 40125329. The reversal of 40125320 is 2352104.

It can be written as a sum of positive squares in 2 ways, for example, as 39513796 + 611524 = 6286^2 + 782^2 .

It is a super-2 number, since 2×40125320² = 3220082610204800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40125329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501527 + ... + 501606.

Almost surely, 2^40125320 is an apocalyptic number.

40125320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40125320 is an abundant number, since it is smaller than the sum of its proper divisors (50156740).

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

40125320 is a wasteful number, since it uses less digits than its factorization.

40125320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003144 (or 1003140 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 40125320 is about 6334.4549883948. The cubic root of 40125320 is about 342.3519739683.

Adding to 40125320 its reverse (2352104), we get a palindrome (42477424).

The spelling of 40125320 in words is "forty million, one hundred twenty-five thousand, three hundred twenty".