40125423 has 16 divisors (see below), whose sum is σ = 61006176. Its totient is φ = 23239680.

The previous prime is 40125419. The next prime is 40125469. The reversal of 40125423 is 32452104.

It is not a de Polignac number, because 40125423 - 2² = 40125419 is a prime.

It is a super-2 number, since 2×40125423² = 3220099141857858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40125423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40125403) 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, 29598 + ... + 30923.

It is an arithmetic number, because the mean of its divisors is an integer number (3812886).

Almost surely, 2^40125423 is an apocalyptic number.

40125423 is a deficient number, since it is larger than the sum of its proper divisors (20880753).

40125423 is a wasteful number, since it uses less digits than its factorization.

40125423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60554.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 40125423 is about 6334.4631185287. The cubic root of 40125423 is about 342.3522669024.

Adding to 40125423 its reverse (32452104), we get a palindrome (72577527).

The spelling of 40125423 in words is "forty million, one hundred twenty-five thousand, four hundred twenty-three".