40130224042 has 4 divisors (see below), whose sum is σ = 60195336066. Its totient is φ = 20065112020.

The previous prime is 40130224039. The next prime is 40130224063. The reversal of 40130224042 is 24042203104.

It is a happy number.

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., 35887134721 + 4243089321 = 189439^2 + 65139^2 .

It is a super-2 number, since 2×40130224042² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10032556009 + ... + 10032556012.

Almost surely, 2^40130224042 is an apocalyptic number.

40130224042 is a deficient number, since it is larger than the sum of its proper divisors (20065112024).

40130224042 is a wasteful number, since it uses less digits than its factorization.

40130224042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20065112023.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 40130224042 its reverse (24042203104), we get a palindrome (64172427146).

The spelling of 40130224042 in words is "forty billion, one hundred thirty million, two hundred twenty-four thousand, forty-two".