40508742 has 8 divisors (see below), whose sum is σ = 81017496. Its totient is φ = 13502912.

The previous prime is 40508719. The next prime is 40508753. The reversal of 40508742 is 24780504.

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

40508742 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3375723 + ... + 3375734.

It is an arithmetic number, because the mean of its divisors is an integer number (10127187).

Almost surely, 2^40508742 is an apocalyptic number.

40508742 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.

40508742 is a wasteful number, since it uses less digits than its factorization.

40508742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6751462.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 40508742 is about 6364.6478300060. The cubic root of 40508742 is about 343.4389798573.

The spelling of 40508742 in words is "forty million, five hundred eight thousand, seven hundred forty-two".