40452542990 has 64 divisors (see below), whose sum is σ = 78684963840. Its totient is φ = 14923388160.

The previous prime is 40452542989. The next prime is 40452543041. The reversal of 40452542990 is 9924525404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3788399 + ... + 3799061.

It is an arithmetic number, because the mean of its divisors is an integer number (1229452560).

Almost surely, 2^40452542990 is an apocalyptic number.

40452542990 is a deficient number, since it is larger than the sum of its proper divisors (38232420850).

40452542990 is a wasteful number, since it uses less digits than its factorization.

40452542990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11217.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 40452542990 in words is "forty billion, four hundred fifty-two million, five hundred forty-two thousand, nine hundred ninety".