7900434242 has 8 divisors (see below), whose sum is σ = 12547748556. Its totient is φ = 3717851392.

The previous prime is 7900434239. The next prime is 7900434257. The reversal of 7900434242 is 2424340097.

7900434242 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7869286681 + 31147561 = 88709^2 + 5581^2 .

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

It is a super-2 number, since 2×7900434242² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116182823 + ... + 116182890.

Almost surely, 2^7900434242 is an apocalyptic number.

7900434242 is a deficient number, since it is larger than the sum of its proper divisors (4647314314).

7900434242 is a wasteful number, since it uses less digits than its factorization.

7900434242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232365732.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 7900434242 is about 88884.3869416896. The cubic root of 7900434242 is about 1991.6681921881.

The spelling of 7900434242 in words is "seven billion, nine hundred million, four hundred thirty-four thousand, two hundred forty-two".