422734537 has 8 divisors (see below), whose sum is σ = 437856840. Its totient is φ = 408133936.

The previous prime is 422734523. The next prime is 422734577. The reversal of 422734537 is 735437224.

It can be written as a sum of positive squares in 4 ways, for example, as 24492601 + 398241936 = 4949^2 + 19956^2 .

It is not a de Polignac number, because 422734537 - 2²³ = 414345929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422734496 and 422734505.

It is not an unprimeable number, because it can be changed into a prime (422734517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15723 + ... + 33055.

It is an arithmetic number, because the mean of its divisors is an integer number (54732105).

Almost surely, 2^422734537 is an apocalyptic number.

It is an amenable number.

422734537 is a deficient number, since it is larger than the sum of its proper divisors (15122303).

422734537 is an frugal number, since it uses more digits than its factorization.

422734537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17420 (or 17362 counting only the distinct ones).

The product of its digits is 141120, while the sum is 37.

The square root of 422734537 is about 20560.5091619833. The cubic root of 422734537 is about 750.5090097266.

The spelling of 422734537 in words is "four hundred twenty-two million, seven hundred thirty-four thousand, five hundred thirty-seven".