30704 has 20 divisors (see below), whose sum is σ = 63240. Its totient is φ = 14400.

The previous prime is 30703. The next prime is 30707. The reversal of 30704 is 40703.

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254 + ... + 354.

It is an arithmetic number, because the mean of its divisors is an integer number (3162).

2³⁰⁷⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31620).

30704 is an abundant number, since it is smaller than the sum of its proper divisors (32536).

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

30704 is a wasteful number, since it uses less digits than its factorization.

30704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 14.

The square root of 30704 is about 175.2255689105. The cubic root of 30704 is about 31.3135028689.

Subtracting 30704 from its reverse (40703), we obtain a palindrome (9999).

The spelling of 30704 in words is "thirty thousand, seven hundred four".