40608623 has 4 divisors (see below), whose sum is σ = 44300328. Its totient is φ = 36916920.

The previous prime is 40608619. The next prime is 40608629. The reversal of 40608623 is 32680604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40608623 - 2² = 40608619 is a prime.

It is a super-2 number, since 2×40608623² = 3298120523912258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40608629) 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, 1845836 + ... + 1845857.

It is an arithmetic number, because the mean of its divisors is an integer number (11075082).

Almost surely, 2^40608623 is an apocalyptic number.

40608623 is a deficient number, since it is larger than the sum of its proper divisors (3691705).

40608623 is a wasteful number, since it uses less digits than its factorization.

40608623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691704.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 40608623 is about 6372.4895449110. The cubic root of 40608623 is about 343.7210167079.

The spelling of 40608623 in words is "forty million, six hundred eight thousand, six hundred twenty-three".