40220103442 has 4 divisors (see below), whose sum is σ = 60330155166. Its totient is φ = 20110051720.

The previous prime is 40220103409. The next prime is 40220103479. The reversal of 40220103442 is 24430102204.

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., 33113444841 + 7106658601 = 181971^2 + 84301^2 .

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, 10055025859 + ... + 10055025862.

Almost surely, 2^40220103442 is an apocalyptic number.

40220103442 is a deficient number, since it is larger than the sum of its proper divisors (20110051724).

40220103442 is a wasteful number, since it uses less digits than its factorization.

40220103442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20110051723.

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

Adding to 40220103442 its reverse (24430102204), we get a palindrome (64650205646).

The spelling of 40220103442 in words is "forty billion, two hundred twenty million, one hundred three thousand, four hundred forty-two".