8142472 has 32 divisors (see below), whose sum is σ = 16732800. Its totient is φ = 3691584.

The previous prime is 8142467. The next prime is 8142487. The reversal of 8142472 is 2742418.

It is a self number, because there is not a number n which added to its sum of digits gives 8142472.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5473 + ... + 6799.

It is an arithmetic number, because the mean of its divisors is an integer number (522900).

Almost surely, 2^8142472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8142472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8366400).

8142472 is an abundant number, since it is smaller than the sum of its proper divisors (8590328).

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

8142472 is a wasteful number, since it uses less digits than its factorization.

8142472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405 (or 1401 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 8142472 is about 2853.5017084277. The cubic root of 8142472 is about 201.1802875710.

The spelling of 8142472 in words is "eight million, one hundred forty-two thousand, four hundred seventy-two".