30104256 has 112 divisors (see below), whose sum is σ = 98088704. Its totient is φ = 7934976.

The previous prime is 30104231. The next prime is 30104281. The reversal of 30104256 is 65240103.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30104231) and next prime (30104281).

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16611 + ... + 18333.

It is an arithmetic number, because the mean of its divisors is an integer number (875792).

Almost surely, 2^30104256 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 30104256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49044352).

30104256 is an abundant number, since it is smaller than the sum of its proper divisors (67984448).

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

30104256 is a wasteful number, since it uses less digits than its factorization.

30104256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758 (or 1748 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 30104256 is about 5486.7345479802. The cubic root of 30104256 is about 311.0827762554.

Adding to 30104256 its reverse (65240103), we get a palindrome (95344359).

The spelling of 30104256 in words is "thirty million, one hundred four thousand, two hundred fifty-six".