30584142 has 20 divisors (see below), whose sum is σ = 68531496. Its totient is φ = 10194660.

The previous prime is 30584117. The next prime is 30584149. The reversal of 30584142 is 24148503.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30584149) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 94234 + ... + 94557.

Almost surely, 2^30584142 is an apocalyptic number.

30584142 is an abundant number, since it is smaller than the sum of its proper divisors (37947354).

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

30584142 is a wasteful number, since it uses less digits than its factorization.

30584142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188805 (or 188796 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 30584142 is about 5530.2931206221. The cubic root of 30584142 is about 312.7270397029.

The spelling of 30584142 in words is "thirty million, five hundred eighty-four thousand, one hundred forty-two".