7942090500 has 264 divisors, whose sum is σ = 26114863320. Its totient is φ = 2110017600.

The previous prime is 7942090433. The next prime is 7942090511. The reversal of 7942090500 is 50902497.

It can be written as a sum of positive squares in 4 ways, for example, as 1666598976 + 6275491524 = 40824^2 + 79218^2 .

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

It is a zygodrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 87 ways as a sum of consecutive naturals, for example, 29524366 + ... + 29524634.

Almost surely, 2^7942090500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7942090500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13057431660).

7942090500 is an abundant number, since it is smaller than the sum of its proper divisors (18172772820).

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

7942090500 is an equidigital number, since it uses as much as digits as its factorization.

7942090500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 7942090500 is about 89118.4071895363. The cubic root of 7942090500 is about 1995.1625171467.

Adding to 7942090500 its reverse (50902497), we get a palindrome (7992992997).

The spelling of 7942090500 in words is "seven billion, nine hundred forty-two million, ninety thousand, five hundred".