325739280 has 80 divisors (see below), whose sum is σ = 1013310144. Its totient is φ = 86561280.

The previous prime is 325739269. The next prime is 325739311. The reversal of 325739280 is 82937523.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×325739280² = 212212157069836800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71470 + ... + 75890.

Almost surely, 2^325739280 is an apocalyptic number.

325739280 is a gapful number since it is divisible by the number (30) 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 325739280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (506655072).

325739280 is an abundant number, since it is smaller than the sum of its proper divisors (687570864).

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

325739280 is a wasteful number, since it uses less digits than its factorization.

325739280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4744 (or 4738 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 325739280 is about 18048.2486684997. The cubic root of 325739280 is about 688.0553520456.

The spelling of 325739280 in words is "three hundred twenty-five million, seven hundred thirty-nine thousand, two hundred eighty".