142406628 has 48 divisors (see below), whose sum is σ = 408965760. Its totient is φ = 37557504.

The previous prime is 142406623. The next prime is 142406629. The reversal of 142406628 is 826604241.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (142406623) 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, 64113 + ... + 66296.

It is an arithmetic number, because the mean of its divisors is an integer number (8520120).

Almost surely, 2^142406628 is an apocalyptic number.

It is an amenable number.

142406628 is an abundant number, since it is smaller than the sum of its proper divisors (266559132).

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

142406628 is a wasteful number, since it uses less digits than its factorization.

142406628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130436 (or 130434 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 142406628 is about 11933.4248227405. The cubic root of 142406628 is about 522.2078560372.

The spelling of 142406628 in words is "one hundred forty-two million, four hundred six thousand, six hundred twenty-eight".