142909392 has 80 divisors (see below), whose sum is σ = 385140032. Its totient is φ = 45619200.

The previous prime is 142909379. The next prime is 142909409. The reversal of 142909392 is 293909241.

It is a self number, because there is not a number n which added to its sum of digits gives 142909392.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118392 + ... + 119592.

Almost surely, 2^142909392 is an apocalyptic number.

142909392 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 142909392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192570016).

142909392 is an abundant number, since it is smaller than the sum of its proper divisors (242230640).

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

142909392 is a wasteful number, since it uses less digits than its factorization.

142909392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316 (or 1310 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 142909392 is about 11954.4716319878. The cubic root of 142909392 is about 522.8216826687.

The spelling of 142909392 in words is "one hundred forty-two million, nine hundred nine thousand, three hundred ninety-two".