328287157 has 16 divisors (see below), whose sum is σ = 363622464. Its totient is φ = 296353200.

The previous prime is 328287143. The next prime is 328287217. The reversal of 328287157 is 751782823.

It is not a de Polignac number, because 328287157 - 2¹¹ = 328285109 is a prime.

It is a super-2 number, since 2×328287157² = 215544914902285298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328284157) 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, 208182 + ... + 209752.

It is an arithmetic number, because the mean of its divisors is an integer number (22726404).

Almost surely, 2^328287157 is an apocalyptic number.

It is an amenable number.

328287157 is a deficient number, since it is larger than the sum of its proper divisors (35335307).

328287157 is a wasteful number, since it uses less digits than its factorization.

328287157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761 (or 1739 counting only the distinct ones).

The product of its digits is 188160, while the sum is 43.

The square root of 328287157 is about 18118.6963383131. The cubic root of 328287157 is about 689.8446454136.

The spelling of 328287157 in words is "three hundred twenty-eight million, two hundred eighty-seven thousand, one hundred fifty-seven".