142279320 has 32 divisors (see below), whose sum is σ = 426838320. Its totient is φ = 37941120.

The previous prime is 142279301. The next prime is 142279321. The reversal of 142279320 is 23972241.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142279321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592711 + ... + 592950.

Almost surely, 2^142279320 is an apocalyptic number.

142279320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142279320 is an abundant number, since it is smaller than the sum of its proper divisors (284559000).

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

142279320 is a wasteful number, since it uses less digits than its factorization.

142279320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185675 (or 1185671 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 142279320 is about 11928.0895368873. The cubic root of 142279320 is about 522.0521960108.

The spelling of 142279320 in words is "one hundred forty-two million, two hundred seventy-nine thousand, three hundred twenty".