142979742 has 48 divisors (see below), whose sum is σ = 326132352. Its totient is φ = 46937880.

The previous prime is 142979737. The next prime is 142979761. The reversal of 142979742 is 247979241.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30367 + ... + 34757.

It is an arithmetic number, because the mean of its divisors is an integer number (6794424).

Almost surely, 2^142979742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142979742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163066176).

142979742 is an abundant number, since it is smaller than the sum of its proper divisors (183152610).

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

142979742 is an equidigital number, since it uses as much as digits as its factorization.

142979742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4475 (or 4463 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 142979742 is about 11957.4136835689. The cubic root of 142979742 is about 522.9074583974.

The spelling of 142979742 in words is "one hundred forty-two million, nine hundred seventy-nine thousand, seven hundred forty-two".