40393854 has 24 divisors (see below), whose sum is σ = 87657960. Its totient is φ = 13443408.

The previous prime is 40393841. The next prime is 40393877. The reversal of 40393854 is 45839304.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13569 + ... + 16275.

It is an arithmetic number, because the mean of its divisors is an integer number (3652415).

Almost surely, 2^40393854 is an apocalyptic number.

40393854 is an abundant number, since it is smaller than the sum of its proper divisors (47264106).

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

40393854 is a wasteful number, since it uses less digits than its factorization.

40393854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3544 (or 3541 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 40393854 is about 6355.6159418266. The cubic root of 40393854 is about 343.1139933961.

The spelling of 40393854 in words is "forty million, three hundred ninety-three thousand, eight hundred fifty-four".