659272380 has 144 divisors (see below), whose sum is σ = 2026644480. Its totient is φ = 160033536.

The previous prime is 659272351. The next prime is 659272421. The reversal of 659272380 is 83272956.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 800649 + ... + 801471.

It is an arithmetic number, because the mean of its divisors is an integer number (14073920).

Almost surely, 2^659272380 is an apocalyptic number.

659272380 is a gapful number since it is divisible by the number (60) 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 659272380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1013322240).

659272380 is an abundant number, since it is smaller than the sum of its proper divisors (1367372100).

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

659272380 is a wasteful number, since it uses less digits than its factorization.

659272380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940 (or 925 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 659272380 is about 25676.2999670903. The cubic root of 659272380 is about 870.3386975612.

The spelling of 659272380 in words is "six hundred fifty-nine million, two hundred seventy-two thousand, three hundred eighty".