40854642 has 16 divisors (see below), whose sum is σ = 82183680. Its totient is φ = 13539152.

The previous prime is 40854631. The next prime is 40854659. The reversal of 40854642 is 24645804.

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, 18642 + ... + 20717.

It is an arithmetic number, because the mean of its divisors is an integer number (5136480).

Almost surely, 2^40854642 is an apocalyptic number.

40854642 is an abundant number, since it is smaller than the sum of its proper divisors (41329038).

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

40854642 is a wasteful number, since it uses less digits than its factorization.

40854642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39537.

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 40854642 is about 6391.7636063922. The cubic root of 40854642 is about 344.4137407325.

The spelling of 40854642 in words is "forty million, eight hundred fifty-four thousand, six hundred forty-two".