942022728 has 72 divisors (see below), whose sum is σ = 2572940370. Its totient is φ = 311362560.

The previous prime is 942022723. The next prime is 942022729. The reversal of 942022728 is 827220249.

It is a happy number.

942022728 is a `hidden beast` number, since 9 + 420 + 227 + 2 + 8 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 660387204 + 281635524 = 25698^2 + 16782^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 942022692 and 942022701.

It is not an unprimeable number, because it can be changed into a prime (942022723) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3908688 + ... + 3908928.

Almost surely, 2^942022728 is an apocalyptic number.

It is an amenable number.

942022728 is an abundant number, since it is smaller than the sum of its proper divisors (1630917642).

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

942022728 is a wasteful number, since it uses less digits than its factorization.

942022728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 942022728 is about 30692.3887633400. The cubic root of 942022728 is about 980.2882422984.

The spelling of 942022728 in words is "nine hundred forty-two million, twenty-two thousand, seven hundred twenty-eight".