422191946 has 16 divisors (see below), whose sum is σ = 691346880. Its totient is φ = 191770080.

The previous prime is 422191943. The next prime is 422191949. The reversal of 422191946 is 649191224.

It is an interprime number because it is at equal distance from previous prime (422191943) and next prime (422191949).

It is not an unprimeable number, because it can be changed into a prime (422191943) 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, 29435 + ... + 41361.

It is an arithmetic number, because the mean of its divisors is an integer number (43209180).

Almost surely, 2^422191946 is an apocalyptic number.

422191946 is a deficient number, since it is larger than the sum of its proper divisors (269154934).

422191946 is a wasteful number, since it uses less digits than its factorization.

422191946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13549.

The product of its digits is 31104, while the sum is 38.

The square root of 422191946 is about 20547.3099455866. The cubic root of 422191946 is about 750.1877728364.

The spelling of 422191946 in words is "four hundred twenty-two million, one hundred ninety-one thousand, nine hundred forty-six".