142444992 has 56 divisors (see below), whose sum is σ = 377903232. Its totient is φ = 47353600.

The previous prime is 142444909. The next prime is 142444993. The reversal of 142444992 is 299444241.

It is a self number, because there is not a number n which added to its sum of digits gives 142444992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142444993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93517 + ... + 95027.

It is an arithmetic number, because the mean of its divisors is an integer number (6748272).

Almost surely, 2^142444992 is an apocalyptic number.

142444992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142444992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188951616).

142444992 is an abundant number, since it is smaller than the sum of its proper divisors (235458240).

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

142444992 is a wasteful number, since it uses less digits than its factorization.

142444992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017 (or 2007 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 142444992 is about 11935.0321323405. The cubic root of 142444992 is about 522.2547456699.

The spelling of 142444992 in words is "one hundred forty-two million, four hundred forty-four thousand, nine hundred ninety-two".