42622129 has 6 divisors (see below), whose sum is σ = 46849250. Its totient is φ = 38747280.

The previous prime is 42622109. The next prime is 42622163. The reversal of 42622129 is 92122624.

It can be written as a sum of positive squares in only one way, i.e., 26501904 + 16120225 = 5148^2 + 4015^2 .

It is not a de Polignac number, because 42622129 - 2¹⁹ = 42097841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42622097 and 42622106.

It is not an unprimeable number, because it can be changed into a prime (42622109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 176004 + ... + 176245.

Almost surely, 2^42622129 is an apocalyptic number.

It is an amenable number.

42622129 is a deficient number, since it is larger than the sum of its proper divisors (4227121).

42622129 is a wasteful number, since it uses less digits than its factorization.

42622129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352271 (or 352260 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 42622129 is about 6528.5625523541. The cubic root of 42622129 is about 349.3105584533.

The spelling of 42622129 in words is "forty-two million, six hundred twenty-two thousand, one hundred twenty-nine".