422501913 has 12 divisors (see below), whose sum is σ = 632883888. Its totient is φ = 281667780.

The previous prime is 422501869. The next prime is 422501951. The reversal of 422501913 is 319105224.

422501913 is a `hidden beast` number, since 422 + 50 + 191 + 3 = 666.

It is not a de Polignac number, because 422501913 - 2⁸ = 422501657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (422508913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 869103 + ... + 869588.

It is an arithmetic number, because the mean of its divisors is an integer number (52740324).

Almost surely, 2^422501913 is an apocalyptic number.

It is an amenable number.

422501913 is a deficient number, since it is larger than the sum of its proper divisors (210381975).

422501913 is an equidigital number, since it uses as much as digits as its factorization.

422501913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738706 (or 1738694 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 422501913 is about 20554.8513251738. The cubic root of 422501913 is about 750.3713201315.

The spelling of 422501913 in words is "four hundred twenty-two million, five hundred one thousand, nine hundred thirteen".