142648890 has 16 divisors (see below), whose sum is σ = 342357408. Its totient is φ = 38039696.

The previous prime is 142648873. The next prime is 142648937. The reversal of 142648890 is 98846241.

142648890 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 2377452 + ... + 2377511.

It is an arithmetic number, because the mean of its divisors is an integer number (21397338).

Almost surely, 2^142648890 is an apocalyptic number.

142648890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142648890 is an abundant number, since it is smaller than the sum of its proper divisors (199708518).

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

142648890 is a wasteful number, since it uses less digits than its factorization.

142648890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4754973.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 142648890 is about 11943.5710740130. The cubic root of 142648890 is about 522.5038147505.

The spelling of 142648890 in words is "one hundred forty-two million, six hundred forty-eight thousand, eight hundred ninety".