423422157 has 16 divisors (see below), whose sum is σ = 589615488. Its totient is φ = 269776320.

The previous prime is 423422143. The next prime is 423422189. The reversal of 423422157 is 751224324.

It is not a de Polignac number, because 423422157 - 2⁷ = 423422029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423422357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117807 + ... + 121347.

It is an arithmetic number, because the mean of its divisors is an integer number (36850968).

Almost surely, 2^423422157 is an apocalyptic number.

It is an amenable number.

423422157 is a deficient number, since it is larger than the sum of its proper divisors (166193331).

423422157 is a wasteful number, since it uses less digits than its factorization.

423422157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5300.

The product of its digits is 13440, while the sum is 30.

The square root of 423422157 is about 20577.2242297157. The cubic root of 423422157 is about 750.9157152768.

The spelling of 423422157 in words is "four hundred twenty-three million, four hundred twenty-two thousand, one hundred fifty-seven".