422454999 has 4 divisors (see below), whose sum is σ = 563273336. Its totient is φ = 281636664.

The previous prime is 422454973. The next prime is 422455001. The reversal of 422454999 is 999454224.

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

It is not a de Polignac number, because 422454999 - 2⁷ = 422454871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422456999) 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, 70409164 + ... + 70409169.

It is an arithmetic number, because the mean of its divisors is an integer number (140818334).

Almost surely, 2^422454999 is an apocalyptic number.

422454999 is a deficient number, since it is larger than the sum of its proper divisors (140818337).

422454999 is a wasteful number, since it uses less digits than its factorization.

422454999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140818336.

The product of its digits is 933120, while the sum is 48.

The square root of 422454999 is about 20553.7101030447. The cubic root of 422454999 is about 750.3435457222.

The spelling of 422454999 in words is "four hundred twenty-two million, four hundred fifty-four thousand, nine hundred ninety-nine".