142580394 has 48 divisors (see below), whose sum is σ = 356840640. Its totient is φ = 40663680.

The previous prime is 142580371. The next prime is 142580401. The reversal of 142580394 is 493085241.

142580394 is a `hidden beast` number, since 1 + 42 + 580 + 39 + 4 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17814 + ... + 24545.

It is an arithmetic number, because the mean of its divisors is an integer number (7434180).

Almost surely, 2^142580394 is an apocalyptic number.

142580394 is an abundant number, since it is smaller than the sum of its proper divisors (214260246).

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

142580394 is a wasteful number, since it uses less digits than its factorization.

142580394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42395 (or 42392 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 142580394 is about 11940.7032456217. The cubic root of 142580394 is about 522.4201707974.

The spelling of 142580394 in words is "one hundred forty-two million, five hundred eighty thousand, three hundred ninety-four".