72143466 has 32 divisors (see below), whose sum is σ = 147184128. Its totient is φ = 23570160.

The previous prime is 72143453. The next prime is 72143471. The reversal of 72143466 is 66434127.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65581 + ... + 66671.

It is an arithmetic number, because the mean of its divisors is an integer number (4599504).

Almost surely, 2^72143466 is an apocalyptic number.

72143466 is an abundant number, since it is smaller than the sum of its proper divisors (75040662).

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

72143466 is a wasteful number, since it uses less digits than its factorization.

72143466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306.

The product of its digits is 24192, while the sum is 33.

The square root of 72143466 is about 8493.7309823187. The cubic root of 72143466 is about 416.2928973096.

The spelling of 72143466 in words is "seventy-two million, one hundred forty-three thousand, four hundred sixty-six".