8451234428 has 72 divisors (see below), whose sum is σ = 19502960400. Its totient is φ = 3167361792.

The previous prime is 8451234419. The next prime is 8451234461. The reversal of 8451234428 is 8244321548.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38873 + ... + 135696.

It is an arithmetic number, because the mean of its divisors is an integer number (270874450).

Almost surely, 2^8451234428 is an apocalyptic number.

It is an amenable number.

8451234428 is an abundant number, since it is smaller than the sum of its proper divisors (11051725972).

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

8451234428 is a wasteful number, since it uses less digits than its factorization.

8451234428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174619 (or 174610 counting only the distinct ones).

The product of its digits is 245760, while the sum is 41.

The square root of 8451234428 is about 91930.5957122002. The cubic root of 8451234428 is about 2036.9172350575.

The spelling of 8451234428 in words is "eight billion, four hundred fifty-one million, two hundred thirty-four thousand, four hundred twenty-eight".