30286900 has 72 divisors (see below), whose sum is σ = 76731200. Its totient is φ = 10372320.

The previous prime is 30286891. The next prime is 30286939. The reversal of 30286900 is 968203.

It is a super-2 number, since 2×30286900² = 1834592623220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33859 + ... + 34741.

Almost surely, 2^30286900 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 30286900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38365600).

30286900 is an abundant number, since it is smaller than the sum of its proper divisors (46444300).

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

30286900 is a wasteful number, since it uses less digits than its factorization.

30286900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 30286900 is about 5503.3535230803. The cubic root of 30286900 is about 311.7106263914.

The spelling of 30286900 in words is "thirty million, two hundred eighty-six thousand, nine hundred".