40506508 has 24 divisors (see below), whose sum is σ = 81162144. Its totient is φ = 17328000.

The previous prime is 40506497. The next prime is 40506511. The reversal of 40506508 is 80560504.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20358 + ... + 22258.

It is an arithmetic number, because the mean of its divisors is an integer number (3381756).

Almost surely, 2^40506508 is an apocalyptic number.

It is an amenable number.

40506508 is an abundant number, since it is smaller than the sum of its proper divisors (40655636).

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

40506508 is a wasteful number, since it uses less digits than its factorization.

40506508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673 (or 2671 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 40506508 is about 6364.4723269097. The cubic root of 40506508 is about 343.4326663494.

It can be divided in two parts, 40506 and 508, that added together give a palindrome (41014).

The spelling of 40506508 in words is "forty million, five hundred six thousand, five hundred eight".