40124122 has 4 divisors (see below), whose sum is σ = 60186186. Its totient is φ = 20062060.

The previous prime is 40124087. The next prime is 40124129. The reversal of 40124122 is 22142104.

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

It can be written as a sum of positive squares in only one way, i.e., 30569841 + 9554281 = 5529^2 + 3091^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40124096 and 40124105.

It is not an unprimeable number, because it can be changed into a prime (40124129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10031029 + ... + 10031032.

Almost surely, 2^40124122 is an apocalyptic number.

40124122 is a deficient number, since it is larger than the sum of its proper divisors (20062064).

40124122 is a wasteful number, since it uses less digits than its factorization.

40124122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20062063.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 40124122 is about 6334.3604254889. The cubic root of 40124122 is about 342.3485667951.

Adding to 40124122 its reverse (22142104), we get a palindrome (62266226).

The spelling of 40124122 in words is "forty million, one hundred twenty-four thousand, one hundred twenty-two".