942456690 has 144 divisors (see below), whose sum is σ = 2911738752. Its totient is φ = 210788928.

The previous prime is 942456661. The next prime is 942456707. The reversal of 942456690 is 96654249.

It is a super-2 number, since 2×942456690² = 1776449225051512200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 204997 + ... + 209543.

It is an arithmetic number, because the mean of its divisors is an integer number (20220408).

Almost surely, 2^942456690 is an apocalyptic number.

942456690 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 942456690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1455869376).

942456690 is an abundant number, since it is smaller than the sum of its proper divisors (1969282062).

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

942456690 is a wasteful number, since it uses less digits than its factorization.

942456690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4621 (or 4611 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 942456690 is about 30699.4574870632. The cubic root of 942456690 is about 980.4387491195.

The spelling of 942456690 in words is "nine hundred forty-two million, four hundred fifty-six thousand, six hundred ninety".