40523408 has 20 divisors (see below), whose sum is σ = 78647868. Its totient is φ = 20227200.

The previous prime is 40523387. The next prime is 40523419. The reversal of 40523408 is 80432504.

It can be written as a sum of positive squares in 2 ways, for example, as 13191424 + 27331984 = 3632^2 + 5228^2 .

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 3 ways as a sum of consecutive naturals, for example, 9410 + ... + 13022.

Almost surely, 2^40523408 is an apocalyptic number.

It is an amenable number.

40523408 is a deficient number, since it is larger than the sum of its proper divisors (38124460).

40523408 is a wasteful number, since it uses less digits than its factorization.

40523408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4322 (or 4316 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 40523408 is about 6365.7998711867. The cubic root of 40523408 is about 343.4804216803.

The spelling of 40523408 in words is "forty million, five hundred twenty-three thousand, four hundred eight".