40252808 has 8 divisors (see below), whose sum is σ = 75474030. Its totient is φ = 20126400.

The previous prime is 40252801. The next prime is 40252819. The reversal of 40252808 is 80825204.

It can be written as a sum of positive squares in only one way, i.e., 34597924 + 5654884 = 5882^2 + 2378^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (40252801) by changing a digit.

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 as a sum of consecutive naturals, namely, 2515793 + ... + 2515808.

Almost surely, 2^40252808 is an apocalyptic number.

It is an amenable number.

40252808 is a deficient number, since it is larger than the sum of its proper divisors (35221222).

40252808 is a wasteful number, since it uses less digits than its factorization.

40252808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5031607 (or 5031603 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 40252808 is about 6344.5100677673. The cubic root of 40252808 is about 342.7141694219.

The spelling of 40252808 in words is "forty million, two hundred fifty-two thousand, eight hundred eight".