30126900 has 72 divisors (see below), whose sum is σ = 87744384. Its totient is φ = 7980800.

The previous prime is 30126893. The next prime is 30126919. The reversal of 30126900 is 962103.

It is a super-2 number, since 2×30126900² = 1815260207220000, which contains 22 as substring.

It is a congruent 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, 69685 + ... + 70115.

It is an arithmetic number, because the mean of its divisors is an integer number (1218672).

Almost surely, 2^30126900 is an apocalyptic number.

30126900 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30126900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43872192).

30126900 is an abundant number, since it is smaller than the sum of its proper divisors (57617484).

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

30126900 is a wasteful number, since it uses less digits than its factorization.

30126900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 30126900 is about 5488.7976825531. The cubic root of 30126900 is about 311.1607540775.

The spelling of 30126900 in words is "thirty million, one hundred twenty-six thousand, nine hundred".