142284774 has 16 divisors (see below), whose sum is σ = 284983920. Its totient is φ = 47359200.

The previous prime is 142284763. The next prime is 142284797. The reversal of 142284774 is 477482241.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12709 + ... + 21120.

It is an arithmetic number, because the mean of its divisors is an integer number (17811495).

Almost surely, 2^142284774 is an apocalyptic number.

142284774 is an abundant number, since it is smaller than the sum of its proper divisors (142699146).

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

142284774 is a wasteful number, since it uses less digits than its factorization.

142284774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34535.

The product of its digits is 100352, while the sum is 39.

The square root of 142284774 is about 11928.3181547107. The cubic root of 142284774 is about 522.0588665428.

The spelling of 142284774 in words is "one hundred forty-two million, two hundred eighty-four thousand, seven hundred seventy-four".