422962890 has 128 divisors (see below), whose sum is σ = 1235824128. Its totient is φ = 90439680.

The previous prime is 422962877. The next prime is 422962901. The reversal of 422962890 is 98269224.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 917260 + ... + 917720.

It is an arithmetic number, because the mean of its divisors is an integer number (9654876).

Almost surely, 2^422962890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422962890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (617912064).

422962890 is an abundant number, since it is smaller than the sum of its proper divisors (812861238).

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

422962890 is a wasteful number, since it uses less digits than its factorization.

422962890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 422962890 is about 20566.0616064428. The cubic root of 422962890 is about 750.6441222060.

The spelling of 422962890 in words is "four hundred twenty-two million, nine hundred sixty-two thousand, eight hundred ninety".