142907868 has 24 divisors (see below), whose sum is σ = 370502160. Its totient is φ = 47635920.

The previous prime is 142907867. The next prime is 142907881. The reversal of 142907868 is 868709241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142907867) 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, 661503 + ... + 661718.

It is an arithmetic number, because the mean of its divisors is an integer number (15437590).

Almost surely, 2^142907868 is an apocalyptic number.

142907868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

142907868 is an abundant number, since it is smaller than the sum of its proper divisors (227594292).

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

142907868 is a wasteful number, since it uses less digits than its factorization.

142907868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323234 (or 1323226 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 142907868 is about 11954.4078899793. The cubic root of 142907868 is about 522.8198241879.

The spelling of 142907868 in words is "one hundred forty-two million, nine hundred seven thousand, eight hundred sixty-eight".