422492390 has 8 divisors (see below), whose sum is σ = 760486320. Its totient is φ = 168996952.

The previous prime is 422492383. The next prime is 422492429. The reversal of 422492390 is 93294224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 422492390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21124610 + ... + 21124629.

It is an arithmetic number, because the mean of its divisors is an integer number (95060790).

Almost surely, 2^422492390 is an apocalyptic number.

422492390 is a deficient number, since it is larger than the sum of its proper divisors (337993930).

422492390 is a wasteful number, since it uses less digits than its factorization.

422492390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42249246.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 422492390 is about 20554.6196753917. The cubic root of 422492390 is about 750.3656824136.

The spelling of 422492390 in words is "four hundred twenty-two million, four hundred ninety-two thousand, three hundred ninety".