7840292442 has 16 divisors (see below), whose sum is σ = 15699977280. Its totient is φ = 2610198752.

The previous prime is 7840292437. The next prime is 7840292443. The reversal of 7840292442 is 2442920487.

It is a super-2 number, since 2×7840292442² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 7840292394 and 7840292403.

It is not an unprimeable number, because it can be changed into a prime (7840292443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802758 + ... + 812465.

It is an arithmetic number, because the mean of its divisors is an integer number (981248580).

Almost surely, 2^7840292442 is an apocalyptic number.

7840292442 is an abundant number, since it is smaller than the sum of its proper divisors (7859684838).

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

7840292442 is a wasteful number, since it uses less digits than its factorization.

7840292442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616037.

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 7840292442 is about 88545.4258671785. The cubic root of 7840292442 is about 1986.6014770673.

The spelling of 7840292442 in words is "seven billion, eight hundred forty million, two hundred ninety-two thousand, four hundred forty-two".