142940280 has 64 divisors (see below), whose sum is σ = 490083840. Its totient is φ = 32671872.

The previous prime is 142940269. The next prime is 142940293. The reversal of 142940280 is 82049241.

142940280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84244 + ... + 85923.

It is an arithmetic number, because the mean of its divisors is an integer number (7657560).

Almost surely, 2^142940280 is an apocalyptic number.

142940280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142940280 is an abundant number, since it is smaller than the sum of its proper divisors (347143560).

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

142940280 is a wasteful number, since it uses less digits than its factorization.

142940280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170188 (or 170184 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 142940280 is about 11955.7634637023. The cubic root of 142940280 is about 522.8593469831.

The spelling of 142940280 in words is "one hundred forty-two million, nine hundred forty thousand, two hundred eighty".