40422723 has 16 divisors (see below), whose sum is σ = 60825600. Its totient is φ = 23653280.

The previous prime is 40422721. The next prime is 40422727. The reversal of 40422723 is 32722404.

It is a cyclic number.

It is not a de Polignac number, because 40422723 - 2¹ = 40422721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40422693 and 40422702.

It is not an unprimeable number, because it can be changed into a prime (40422721) 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, 20163 + ... + 22076.

It is an arithmetic number, because the mean of its divisors is an integer number (3801600).

Almost surely, 2^40422723 is an apocalyptic number.

40422723 is a deficient number, since it is larger than the sum of its proper divisors (20402877).

40422723 is a wasteful number, since it uses less digits than its factorization.

40422723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42282.

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 40422723 is about 6357.8866771908. The cubic root of 40422723 is about 343.1957137412.

The spelling of 40422723 in words is "forty million, four hundred twenty-two thousand, seven hundred twenty-three".