142444672 has 64 divisors (see below), whose sum is σ = 306979200. Its totient is φ = 65608704.

The previous prime is 142444669. The next prime is 142444693. The reversal of 142444672 is 276444241.

It is a tau number, because it is divible by the number of its divisors (64).

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, 89193 + ... + 90775.

It is an arithmetic number, because the mean of its divisors is an integer number (4796550).

Almost surely, 2^142444672 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 142444672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153489600).

142444672 is an abundant number, since it is smaller than the sum of its proper divisors (164534528).

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

142444672 is a wasteful number, since it uses less digits than its factorization.

142444672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653 (or 1641 counting only the distinct ones).

The product of its digits is 43008, while the sum is 34.

The square root of 142444672 is about 11935.0187264202. The cubic root of 142444672 is about 522.2543545911.

The spelling of 142444672 in words is "one hundred forty-two million, four hundred forty-four thousand, six hundred seventy-two".