40612693 has 4 divisors (see below), whose sum is σ = 44304768. Its totient is φ = 36920620.

The previous prime is 40612679. The next prime is 40612721. The reversal of 40612693 is 39621604.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40612693 - 2¹⁷ = 40481621 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40612393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1846021 + ... + 1846042.

It is an arithmetic number, because the mean of its divisors is an integer number (11076192).

Almost surely, 2^40612693 is an apocalyptic number.

It is an amenable number.

40612693 is a deficient number, since it is larger than the sum of its proper divisors (3692075).

40612693 is a wasteful number, since it uses less digits than its factorization.

40612693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3692074.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 40612693 is about 6372.8088783518. The cubic root of 40612693 is about 343.7324994727.

The spelling of 40612693 in words is "forty million, six hundred twelve thousand, six hundred ninety-three".