142446860 has 24 divisors (see below), whose sum is σ = 308789376. Its totient is φ = 55140480.

The previous prime is 142446851. The next prime is 142446877. The reversal of 142446860 is 68644241.

It is a super-2 number, since 2×142446860² = 40582215847719200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142446860.

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, 114257 + ... + 115496.

It is an arithmetic number, because the mean of its divisors is an integer number (12866224).

Almost surely, 2^142446860 is an apocalyptic number.

142446860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142446860 is an abundant number, since it is smaller than the sum of its proper divisors (166342516).

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

142446860 is a wasteful number, since it uses less digits than its factorization.

142446860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229793 (or 229791 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 142446860 is about 11935.1103890999. The cubic root of 142446860 is about 522.2570285806.

It can be divided in two parts, 1424 and 46860, that added together give a palindrome (48284).

The spelling of 142446860 in words is "one hundred forty-two million, four hundred forty-six thousand, eight hundred sixty".