7209488790 has 192 divisors, whose sum is σ = 22458788352. Its totient is φ = 1570060800.

The previous prime is 7209488779. The next prime is 7209488849. The reversal of 7209488790 is 978849027.

7209488790 is a `hidden beast` number, since 72 + 0 + 9 + 488 + 7 + 90 = 666.

It is a super-2 number, since 2×7209488790² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1107445 + ... + 1113935.

It is an arithmetic number, because the mean of its divisors is an integer number (116972856).

Almost surely, 2^7209488790 is an apocalyptic number.

7209488790 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 7209488790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11229394176).

7209488790 is an abundant number, since it is smaller than the sum of its proper divisors (15249299562).

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

7209488790 is a wasteful number, since it uses less digits than its factorization.

7209488790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6595 (or 6592 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The square root of 7209488790 is about 84908.7085639630. The cubic root of 7209488790 is about 1931.8266677695.

The spelling of 7209488790 in words is "seven billion, two hundred nine million, four hundred eighty-eight thousand, seven hundred ninety".