142568390 has 16 divisors (see below), whose sum is σ = 262084032. Its totient is φ = 55813824.

The previous prime is 142568389. The next prime is 142568417. The reversal of 142568390 is 93865241.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151199 + ... + 152138.

It is an arithmetic number, because the mean of its divisors is an integer number (16380252).

Almost surely, 2^142568390 is an apocalyptic number.

142568390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142568390 is a deficient number, since it is larger than the sum of its proper divisors (119515642).

142568390 is a wasteful number, since it uses less digits than its factorization.

142568390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303391.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 142568390 is about 11940.2005845798. The cubic root of 142568390 is about 522.4055093433.

The spelling of 142568390 in words is "one hundred forty-two million, five hundred sixty-eight thousand, three hundred ninety".