142402028 has 6 divisors (see below), whose sum is σ = 249203556. Its totient is φ = 71201012.

The previous prime is 142402027. The next prime is 142402031. The reversal of 142402028 is 820204241.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 142401994 and 142402012.

It is not an unprimeable number, because it can be changed into a prime (142402027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17800250 + ... + 17800257.

It is an arithmetic number, because the mean of its divisors is an integer number (41533926).

Almost surely, 2^142402028 is an apocalyptic number.

It is an amenable number.

142402028 is a deficient number, since it is larger than the sum of its proper divisors (106801528).

142402028 is a wasteful number, since it uses less digits than its factorization.

142402028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35600511 (or 35600509 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 142402028 is about 11933.2320852316. The cubic root of 142402028 is about 522.2022332137.

Adding to 142402028 its reverse (820204241), we get a palindrome (962606269).

It can be divided in two parts, 14 and 2402028, that added together give a palindrome (2402042).

The spelling of 142402028 in words is "one hundred forty-two million, four hundred two thousand, twenty-eight".