142944780 has 96 divisors (see below), whose sum is σ = 440858880. Its totient is φ = 34318080.

The previous prime is 142944779. The next prime is 142944803. The reversal of 142944780 is 87449241.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70947 + ... + 72933.

It is an arithmetic number, because the mean of its divisors is an integer number (4592280).

Almost surely, 2^142944780 is an apocalyptic number.

142944780 is a gapful number since it is divisible by the number (10) 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 142944780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220429440).

142944780 is an abundant number, since it is smaller than the sum of its proper divisors (297914100).

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

142944780 is a wasteful number, since it uses less digits than its factorization.

142944780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119 (or 2117 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 142944780 is about 11955.9516559745. The cubic root of 142944780 is about 522.8648337556.

The spelling of 142944780 in words is "one hundred forty-two million, nine hundred forty-four thousand, seven hundred eighty".