40455742 has 8 divisors (see below), whose sum is σ = 61452000. Its totient is φ = 19971744.

The previous prime is 40455721. The next prime is 40455761. The reversal of 40455742 is 24755404.

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

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, 127867 + ... + 128182.

It is an arithmetic number, because the mean of its divisors is an integer number (7681500).

Almost surely, 2^40455742 is an apocalyptic number.

40455742 is a deficient number, since it is larger than the sum of its proper divisors (20996258).

40455742 is a wasteful number, since it uses less digits than its factorization.

40455742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256130.

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 40455742 is about 6360.4828433068. The cubic root of 40455742 is about 343.2891339296.

The spelling of 40455742 in words is "forty million, four hundred fifty-five thousand, seven hundred forty-two".