426622499 has 4 divisors (see below), whose sum is σ = 427016064. Its totient is φ = 426228936.

The previous prime is 426622489. The next prime is 426622501. The reversal of 426622499 is 994226624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 426622499 - 2²⁴ = 409845283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426622489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195152 + ... + 197325.

It is an arithmetic number, because the mean of its divisors is an integer number (106754016).

Almost surely, 2^426622499 is an apocalyptic number.

426622499 is a deficient number, since it is larger than the sum of its proper divisors (393565).

426622499 is a wasteful number, since it uses less digits than its factorization.

426622499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393564.

The product of its digits is 373248, while the sum is 44.

The square root of 426622499 is about 20654.8420231189. The cubic root of 426622499 is about 752.8028451049.

The spelling of 426622499 in words is "four hundred twenty-six million, six hundred twenty-two thousand, four hundred ninety-nine".