328761451 has 4 divisors (see below), whose sum is σ = 329071792. Its totient is φ = 328451112.

The previous prime is 328761449. The next prime is 328761463. The reversal of 328761451 is 154167823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154167823 = 97 ⋅1589359.

It is a cyclic number.

It is not a de Polignac number, because 328761451 - 2¹ = 328761449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 328761451.

It is not an unprimeable number, because it can be changed into a prime (328761481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153576 + ... + 155701.

It is an arithmetic number, because the mean of its divisors is an integer number (82267948).

Almost surely, 2^328761451 is an apocalyptic number.

328761451 is a deficient number, since it is larger than the sum of its proper divisors (310341).

328761451 is a wasteful number, since it uses less digits than its factorization.

328761451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310340.

The product of its digits is 40320, while the sum is 37.

The square root of 328761451 is about 18131.7801387509. The cubic root of 328761451 is about 690.1767040259.

The spelling of 328761451 in words is "three hundred twenty-eight million, seven hundred sixty-one thousand, four hundred fifty-one".