7297920000 has 660 divisors, whose sum is σ = 30260326096. Its totient is φ = 1658880000.

The previous prime is 7297919921. The next prime is 7297920023. The reversal of 7297920000 is 297927.

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

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 40319910 + ... + 40320090.

Almost surely, 2^7297920000 is an apocalyptic number.

7297920000 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7297920000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15130163048).

7297920000 is an abundant number, since it is smaller than the sum of its proper divisors (22962406096).

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

7297920000 is a wasteful number, since it uses less digits than its factorization.

7297920000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 7297920000 is about 85427.8643066769. The cubic root of 7297920000 is about 1939.6931530136.

The spelling of 7297920000 in words is "seven billion, two hundred ninety-seven million, nine hundred twenty thousand".