422690433 has 8 divisors (see below), whose sum is σ = 614822496. Its totient is φ = 256176000.

The previous prime is 422690419. The next prime is 422690441. The reversal of 422690433 is 334096224.

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

It is a de Polignac number, because none of the positive numbers 2^k-422690433 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 12808801 = 422690433 / (4 + 2 + 2 + 6 + 9 + 0 + 4 + 3 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 422690394 and 422690403.

It is not an unprimeable number, because it can be changed into a prime (421690433) 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, 6404368 + ... + 6404433.

It is an arithmetic number, because the mean of its divisors is an integer number (76852812).

Almost surely, 2^422690433 is an apocalyptic number.

It is an amenable number.

422690433 is a deficient number, since it is larger than the sum of its proper divisors (192132063).

422690433 is a wasteful number, since it uses less digits than its factorization.

422690433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12808815.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 422690433 is about 20559.4365924750. The cubic root of 422690433 is about 750.4829085546.

The spelling of 422690433 in words is "four hundred twenty-two million, six hundred ninety thousand, four hundred thirty-three".