142007976 has 96 divisors (see below), whose sum is σ = 441698400. Its totient is φ = 40763520.

The previous prime is 142007963. The next prime is 142007977. The reversal of 142007976 is 679700241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 142007976.

It is not an unprimeable number, because it can be changed into a prime (142007977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10330 + ... + 19766.

It is an arithmetic number, because the mean of its divisors is an integer number (4601025).

Almost surely, 2^142007976 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 142007976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220849200).

142007976 is an abundant number, since it is smaller than the sum of its proper divisors (299690424).

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

142007976 is a wasteful number, since it uses less digits than its factorization.

142007976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9479 (or 9472 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 142007976 is about 11916.7099486393. The cubic root of 142007976 is about 521.7201124300.

The spelling of 142007976 in words is "one hundred forty-two million, seven thousand, nine hundred seventy-six".