422148156 has 48 divisors (see below), whose sum is σ = 1040860800. Its totient is φ = 132795072.

The previous prime is 422148149. The next prime is 422148161. The reversal of 422148156 is 651841224.

It is a happy number.

It is a super-2 number, since 2×422148156² = 356418131228400672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57891 + ... + 64773.

It is an arithmetic number, because the mean of its divisors is an integer number (21684600).

Almost surely, 2^422148156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422148156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (520430400).

422148156 is an abundant number, since it is smaller than the sum of its proper divisors (618712644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422148156 is a wasteful number, since it uses less digits than its factorization.

422148156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7178 (or 7176 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 422148156 is about 20546.2443283438. The cubic root of 422148156 is about 750.1618352988.

The spelling of 422148156 in words is "four hundred twenty-two million, one hundred forty-eight thousand, one hundred fifty-six".