142936428 has 12 divisors (see below), whose sum is σ = 333518360. Its totient is φ = 47645472.

The previous prime is 142936427. The next prime is 142936433. The reversal of 142936428 is 824639241.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (142936427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5955673 + ... + 5955696.

Almost surely, 2^142936428 is an apocalyptic number.

It is an amenable number.

142936428 is an abundant number, since it is smaller than the sum of its proper divisors (190581932).

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

142936428 is a wasteful number, since it uses less digits than its factorization.

142936428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11911376 (or 11911374 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 142936428 is about 11955.6023687642. The cubic root of 142936428 is about 522.8546502144.

The spelling of 142936428 in words is "one hundred forty-two million, nine hundred thirty-six thousand, four hundred twenty-eight".