142345788 has 48 divisors (see below), whose sum is σ = 363054720. Its totient is φ = 43141824.

The previous prime is 142345787. The next prime is 142345793. The reversal of 142345788 is 887543241.

It is a super-2 number, since 2×142345788² = 40524646722681888, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142345783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3643 + ... + 17261.

It is an arithmetic number, because the mean of its divisors is an integer number (7563640).

Almost surely, 2^142345788 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 142345788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181527360).

142345788 is an abundant number, since it is smaller than the sum of its proper divisors (220708932).

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

142345788 is a wasteful number, since it uses less digits than its factorization.

142345788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13706 (or 13704 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 142345788 is about 11930.8754079489. The cubic root of 142345788 is about 522.1334782924.

The spelling of 142345788 in words is "one hundred forty-two million, three hundred forty-five thousand, seven hundred eighty-eight".