142869490 has 16 divisors (see below), whose sum is σ = 258147648. Its totient is φ = 56929456.

The previous prime is 142869481. The next prime is 142869523. The reversal of 142869490 is 94968241.

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, 24532 + ... + 29791.

It is an arithmetic number, because the mean of its divisors is an integer number (16134228).

Almost surely, 2^142869490 is an apocalyptic number.

142869490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142869490 is a deficient number, since it is larger than the sum of its proper divisors (115278158).

142869490 is a wasteful number, since it uses less digits than its factorization.

142869490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54593.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 142869490 is about 11952.8026002273. The cubic root of 142869490 is about 522.7730187976.

The spelling of 142869490 in words is "one hundred forty-two million, eight hundred sixty-nine thousand, four hundred ninety".