28232451 has 12 divisors (see below), whose sum is σ = 43917328. Its totient is φ = 17373744.

The previous prime is 28232419. The next prime is 28232471. The reversal of 28232451 is 15423282.

It is not a de Polignac number, because 28232451 - 2⁵ = 28232419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28232401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120535 + ... + 120768.

Almost surely, 2^28232451 is an apocalyptic number.

28232451 is a deficient number, since it is larger than the sum of its proper divisors (15684877).

28232451 is a wasteful number, since it uses less digits than its factorization.

28232451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241322 (or 241319 counting only the distinct ones).

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

The square root of 28232451 is about 5313.4217788540. The cubic root of 28232451 is about 304.4968898062.

The spelling of 28232451 in words is "twenty-eight million, two hundred thirty-two thousand, four hundred fifty-one".