40746993 has 16 divisors (see below), whose sum is σ = 63144960. Its totient is φ = 22888656.

The previous prime is 40746973. The next prime is 40746997. The reversal of 40746993 is 39964704.

It is not a de Polignac number, because 40746993 - 2²⁵ = 7192561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40746997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15205 + ... + 17682.

It is an arithmetic number, because the mean of its divisors is an integer number (3946560).

Almost surely, 2^40746993 is an apocalyptic number.

It is an amenable number.

40746993 is a deficient number, since it is larger than the sum of its proper divisors (22397967).

40746993 is a wasteful number, since it uses less digits than its factorization.

40746993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32956.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 40746993 is about 6383.3371366394. The cubic root of 40746993 is about 344.1109729627.

The spelling of 40746993 in words is "forty million, seven hundred forty-six thousand, nine hundred ninety-three".