40530808 has 8 divisors (see below), whose sum is σ = 75995280. Its totient is φ = 20265400.

The previous prime is 40530797. The next prime is 40530821. The reversal of 40530808 is 80803504.

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

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2533168 + ... + 2533183.

It is an arithmetic number, because the mean of its divisors is an integer number (9499410).

Almost surely, 2^40530808 is an apocalyptic number.

It is an amenable number.

40530808 is a deficient number, since it is larger than the sum of its proper divisors (35464472).

40530808 is a wasteful number, since it uses less digits than its factorization.

40530808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5066357 (or 5066353 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 40530808 is about 6366.3810756190. The cubic root of 40530808 is about 343.5013281188.

It can be divided in two parts, 405 and 30808, that added together give a palindrome (31213).

The spelling of 40530808 in words is "forty million, five hundred thirty thousand, eight hundred eight".