142445604 has 24 divisors (see below), whose sum is σ = 379855168. Its totient is φ = 40698720.

The previous prime is 142445599. The next prime is 142445621. The reversal of 142445604 is 406544241.

It is a happy number.

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, 847807 + ... + 847974.

Almost surely, 2^142445604 is an apocalyptic number.

142445604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142445604 is an abundant number, since it is smaller than the sum of its proper divisors (237409564).

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

142445604 is a wasteful number, since it uses less digits than its factorization.

142445604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695795 (or 1695793 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 142445604 is about 11935.0577711212. The cubic root of 142445604 is about 522.2554936064.

Adding to 142445604 its reverse (406544241), we get a palindrome (548989845).

The spelling of 142445604 in words is "one hundred forty-two million, four hundred forty-five thousand, six hundred four".