7998004456 has 32 divisors (see below), whose sum is σ = 16248929760. Its totient is φ = 3668732352.

The previous prime is 7998004387. The next prime is 7998004459. The reversal of 7998004456 is 6544008997.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (7998004459) 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, 218950 + ... + 252853.

It is an arithmetic number, because the mean of its divisors is an integer number (507779055).

Almost surely, 2^7998004456 is an apocalyptic number.

It is an amenable number.

7998004456 is an abundant number, since it is smaller than the sum of its proper divisors (8250925304).

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

7998004456 is a wasteful number, since it uses less digits than its factorization.

7998004456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471985 (or 471981 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 7998004456 is about 89431.5629741536. The cubic root of 7998004456 is about 1999.8336908377.

The spelling of 7998004456 in words is "seven billion, nine hundred ninety-eight million, four thousand, four hundred fifty-six".