40640802 has 8 divisors (see below), whose sum is σ = 81281616. Its totient is φ = 13546932.

The previous prime is 40640801. The next prime is 40640819. The reversal of 40640802 is 20804604.

It is a sphenic number, since it is the product of 3 distinct primes.

40640802 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (40640801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3386728 + ... + 3386739.

It is an arithmetic number, because the mean of its divisors is an integer number (10160202).

Almost surely, 2^40640802 is an apocalyptic number.

40640802 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40640802 is a wasteful number, since it uses less digits than its factorization.

40640802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6773472.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 40640802 is about 6375.0138823378. The cubic root of 40640802 is about 343.8117829666.

The spelling of 40640802 in words is "forty million, six hundred forty thousand, eight hundred two".