990422941 has 24 divisors (see below), whose sum is σ = 1108736640. Its totient is φ = 882807552.

The previous prime is 990422929. The next prime is 990422947. The reversal of 990422941 is 149224099.

It is not a de Polignac number, because 990422941 - 2⁹ = 990422429 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 990422894 and 990422903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990422947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 723840 + ... + 725206.

It is an arithmetic number, because the mean of its divisors is an integer number (46197360).

Almost surely, 2^990422941 is an apocalyptic number.

It is an amenable number.

990422941 is a deficient number, since it is larger than the sum of its proper divisors (118313699).

990422941 is a wasteful number, since it uses less digits than its factorization.

990422941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 990422941 is about 31470.9857011184. The cubic root of 990422941 is about 996.7974013109.

The spelling of 990422941 in words is "nine hundred ninety million, four hundred twenty-two thousand, nine hundred forty-one".