40434808 has 8 divisors (see below), whose sum is σ = 75815280. Its totient is φ = 20217400.

The previous prime is 40434781. The next prime is 40434809. The reversal of 40434808 is 80843404.

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

It is a self number, because there is not a number n which added to its sum of digits gives 40434808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40434809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527168 + ... + 2527183.

It is an arithmetic number, because the mean of its divisors is an integer number (9476910).

Almost surely, 2^40434808 is an apocalyptic number.

It is an amenable number.

40434808 is a deficient number, since it is larger than the sum of its proper divisors (35380472).

40434808 is a wasteful number, since it uses less digits than its factorization.

40434808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5054357 (or 5054353 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 40434808 is about 6358.8370005843. The cubic root of 40434808 is about 343.2299115607.

The spelling of 40434808 in words is "forty million, four hundred thirty-four thousand, eight hundred eight".