19422929 has 4 divisors (see below), whose sum is σ = 19530420. Its totient is φ = 19315440.

The previous prime is 19422899. The next prime is 19422943. The reversal of 19422929 is 92922491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92922491 = 157 ⋅591863.

It can be written as a sum of positive squares in 2 ways, for example, as 1317904 + 18105025 = 1148^2 + 4255^2 .

It is a cyclic number.

It is not a de Polignac number, because 19422929 - 2⁸ = 19422673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19422892 and 19422901.

It is not an unprimeable number, because it can be changed into a prime (19422829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53474 + ... + 53835.

It is an arithmetic number, because the mean of its divisors is an integer number (4882605).

Almost surely, 2^19422929 is an apocalyptic number.

It is an amenable number.

19422929 is a deficient number, since it is larger than the sum of its proper divisors (107491).

19422929 is a wasteful number, since it uses less digits than its factorization.

19422929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107490.

The product of its digits is 23328, while the sum is 38.

The square root of 19422929 is about 4407.1452211154. The cubic root of 19422929 is about 268.8055559205.

The spelling of 19422929 in words is "nineteen million, four hundred twenty-two thousand, nine hundred twenty-nine".