40074623 has 4 divisors (see below), whose sum is σ = 40189800. Its totient is φ = 39959448.

The previous prime is 40074571. The next prime is 40074649. The reversal of 40074623 is 32647004.

It is a happy number.

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 40074623 - 2¹⁰ = 40073599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40074592 and 40074601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40074523) 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, 57065 + ... + 57762.

It is an arithmetic number, because the mean of its divisors is an integer number (10047450).

Almost surely, 2^40074623 is an apocalyptic number.

40074623 is a deficient number, since it is larger than the sum of its proper divisors (115177).

40074623 is a wasteful number, since it uses less digits than its factorization.

40074623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115176.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 40074623 is about 6330.4520375720. The cubic root of 40074623 is about 342.2077297785.

The spelling of 40074623 in words is "forty million, seventy-four thousand, six hundred twenty-three".