142434894 has 32 divisors (see below), whose sum is σ = 336070656. Its totient is φ = 39382560.

The previous prime is 142434893. The next prime is 142434907. The reversal of 142434894 is 498434241.

142434894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142434893) 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, 53397 + ... + 56000.

It is an arithmetic number, because the mean of its divisors is an integer number (10502208).

Almost surely, 2^142434894 is an apocalyptic number.

142434894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

142434894 is an abundant number, since it is smaller than the sum of its proper divisors (193635762).

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

142434894 is a wasteful number, since it uses less digits than its factorization.

142434894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109440.

The product of its digits is 110592, while the sum is 39.

The square root of 142434894 is about 11934.6090845071. The cubic root of 142434894 is about 522.2424044075.

The spelling of 142434894 in words is "one hundred forty-two million, four hundred thirty-four thousand, eight hundred ninety-four".