40057893 has 12 divisors (see below), whose sum is σ = 58725888. Its totient is φ = 26306280.

The previous prime is 40057891. The next prime is 40057931. The reversal of 40057893 is 39875004.

It is not a de Polignac number, because 40057893 - 2¹ = 40057891 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40057891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32613 + ... + 33818.

It is an arithmetic number, because the mean of its divisors is an integer number (4893824).

Almost surely, 2^40057893 is an apocalyptic number.

It is an amenable number.

40057893 is a deficient number, since it is larger than the sum of its proper divisors (18667995).

40057893 is a wasteful number, since it uses less digits than its factorization.

40057893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66504 (or 66501 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 40057893 is about 6329.1305090036. The cubic root of 40057893 is about 342.1601025290.

The spelling of 40057893 in words is "forty million, fifty-seven thousand, eight hundred ninety-three".