7297880394 has 64 divisors (see below), whose sum is σ = 17708875776. Its totient is φ = 1957257984.

The previous prime is 7297880393. The next prime is 7297880419. The reversal of 7297880394 is 4930887927.

It is not an unprimeable number, because it can be changed into a prime (7297880393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260119 + ... + 286805.

It is an arithmetic number, because the mean of its divisors is an integer number (276701184).

Almost surely, 2^7297880394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7297880394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8854437888).

7297880394 is an abundant number, since it is smaller than the sum of its proper divisors (10410995382).

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

7297880394 is a wasteful number, since it uses less digits than its factorization.

7297880394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27099.

The product of its (nonzero) digits is 6096384, while the sum is 57.

The square root of 7297880394 is about 85427.6324967513. The cubic root of 7297880394 is about 1939.6896440857.

The spelling of 7297880394 in words is "seven billion, two hundred ninety-seven million, eight hundred eighty thousand, three hundred ninety-four".