7990284474 has 32 divisors (see below), whose sum is σ = 17761645440. Its totient is φ = 2662609536.

The previous prime is 7990284443. The next prime is 7990284481. The reversal of 7990284474 is 4744820997.

It is a happy number.

7990284474 is a `hidden beast` number, since 7 + 9 + 90 + 2 + 84 + 474 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7990284474.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169482 + ... + 211434.

It is an arithmetic number, because the mean of its divisors is an integer number (555051420).

Almost surely, 2^7990284474 is an apocalyptic number.

7990284474 is an abundant number, since it is smaller than the sum of its proper divisors (9771360966).

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

7990284474 is a wasteful number, since it uses less digits than its factorization.

7990284474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45491 (or 45485 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The square root of 7990284474 is about 89388.3911590314. The cubic root of 7990284474 is about 1999.1900448640.

The spelling of 7990284474 in words is "seven billion, nine hundred ninety million, two hundred eighty-four thousand, four hundred seventy-four".