258721372 has 72 divisors (see below), whose sum is σ = 577145520. Its totient is φ = 100558080.

The previous prime is 258721369. The next prime is 258721387. The reversal of 258721372 is 273127852.

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 23 ways as a sum of consecutive naturals, for example, 149472 + ... + 151192.

It is an arithmetic number, because the mean of its divisors is an integer number (8015910).

Almost surely, 2^258721372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258721372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288572760).

258721372 is an abundant number, since it is smaller than the sum of its proper divisors (318424148).

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

258721372 is a wasteful number, since it uses less digits than its factorization.

258721372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811 (or 1802 counting only the distinct ones).

The product of its digits is 47040, while the sum is 37.

The square root of 258721372 is about 16084.8180592756. The cubic root of 258721372 is about 637.2024474265.

The spelling of 258721372 in words is "two hundred fifty-eight million, seven hundred twenty-one thousand, three hundred seventy-two".