40052940 has 24 divisors (see below), whose sum is σ = 112148400. Its totient is φ = 10680768.

The previous prime is 40052939. The next prime is 40052951. The reversal of 40052940 is 4925004.

It is a self number, because there is not a number n which added to its sum of digits gives 40052940.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333715 + ... + 333834.

It is an arithmetic number, because the mean of its divisors is an integer number (4672850).

Almost surely, 2^40052940 is an apocalyptic number.

It is an amenable number.

40052940 is an abundant number, since it is smaller than the sum of its proper divisors (72095460).

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

40052940 is a wasteful number, since it uses less digits than its factorization.

40052940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667561 (or 667559 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 40052940 is about 6328.7392109329. The cubic root of 40052940 is about 342.1459997001.

Adding to 40052940 its reverse (4925004), we get a palindrome (44977944).

The spelling of 40052940 in words is "forty million, fifty-two thousand, nine hundred forty".