142769828 has 12 divisors (see below), whose sum is σ = 256600092. Its totient is φ = 69455520.

The previous prime is 142769801. The next prime is 142769843. The reversal of 142769828 is 828967241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 48330304 + 94439524 = 6952^2 + 9718^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482183 + ... + 482478.

It is an arithmetic number, because the mean of its divisors is an integer number (21383341).

Almost surely, 2^142769828 is an apocalyptic number.

It is an amenable number.

142769828 is a deficient number, since it is larger than the sum of its proper divisors (113830264).

142769828 is a wasteful number, since it uses less digits than its factorization.

142769828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964702 (or 964700 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The square root of 142769828 is about 11948.6328925112. The cubic root of 142769828 is about 522.6514329504.

The spelling of 142769828 in words is "one hundred forty-two million, seven hundred sixty-nine thousand, eight hundred twenty-eight".