7940022 has 8 divisors (see below), whose sum is σ = 15880056. Its totient is φ = 2646672.

The previous prime is 7940021. The next prime is 7940047. The reversal of 7940022 is 2200497.

It is a sphenic number, since it is the product of 3 distinct primes.

7940022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 7939974 and 7940001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7940021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661663 + ... + 661674.

It is an arithmetic number, because the mean of its divisors is an integer number (1985007).

Almost surely, 2^7940022 is an apocalyptic number.

7940022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7940022 is a wasteful number, since it uses less digits than its factorization.

7940022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323342.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 7940022 is about 2817.8044644723. The cubic root of 7940022 is about 199.4989290211.

The spelling of 7940022 in words is "seven million, nine hundred forty thousand, twenty-two".