325420281 has 16 divisors (see below), whose sum is σ = 498729600. Its totient is φ = 209465424.

The previous prime is 325420253. The next prime is 325420289. The reversal of 325420281 is 182024523.

It is a de Polignac number, because none of the positive numbers 2^k-325420281 is a prime.

It is a super-2 number, since 2×325420281² = 211796718572237922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (325420289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207021 + ... + 208586.

It is an arithmetic number, because the mean of its divisors is an integer number (31170600).

Almost surely, 2^325420281 is an apocalyptic number.

It is an amenable number.

325420281 is a deficient number, since it is larger than the sum of its proper divisors (173309319).

325420281 is a wasteful number, since it uses less digits than its factorization.

325420281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415645 (or 415639 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 325420281 is about 18039.4091089481. The cubic root of 325420281 is about 687.8306727077.

The spelling of 325420281 in words is "three hundred twenty-five million, four hundred twenty thousand, two hundred eighty-one".