40993456 has 20 divisors (see below), whose sum is σ = 90771472. Its totient is φ = 17568576.

The previous prime is 40993427. The next prime is 40993471. The reversal of 40993456 is 65439904.

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, 182895 + ... + 183118.

Almost surely, 2^40993456 is an apocalyptic number.

It is an amenable number.

40993456 is an abundant number, since it is smaller than the sum of its proper divisors (49778016).

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

40993456 is a wasteful number, since it uses less digits than its factorization.

40993456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366028 (or 366022 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 40993456 is about 6402.6132164922. The cubic root of 40993456 is about 344.8033774250.

The spelling of 40993456 in words is "forty million, nine hundred ninety-three thousand, four hundred fifty-six".