422394537 has 4 divisors (see below), whose sum is σ = 563192720. Its totient is φ = 281596356.

The previous prime is 422394523. The next prime is 422394559. The reversal of 422394537 is 735493224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 422394537 - 2⁴ = 422394521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422394495 and 422394504.

It is not an unprimeable number, because it can be changed into a prime (422394337) 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, 70399087 + ... + 70399092.

It is an arithmetic number, because the mean of its divisors is an integer number (140798180).

Almost surely, 2^422394537 is an apocalyptic number.

It is an amenable number.

422394537 is a deficient number, since it is larger than the sum of its proper divisors (140798183).

422394537 is a wasteful number, since it uses less digits than its factorization.

422394537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140798182.

The product of its digits is 181440, while the sum is 39.

The square root of 422394537 is about 20552.2392210679. The cubic root of 422394537 is about 750.3077474825.

The spelling of 422394537 in words is "four hundred twenty-two million, three hundred ninety-four thousand, five hundred thirty-seven".