30195000 has 240 divisors, whose sum is σ = 113307480. Its totient is φ = 7200000.

The previous prime is 30194977. The next prime is 30195013. The reversal of 30195000 is 59103.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 494970 + ... + 495030.

Almost surely, 2^30195000 is an apocalyptic number.

30195000 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 30195000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56653740).

30195000 is an abundant number, since it is smaller than the sum of its proper divisors (83112480).

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

30195000 is a wasteful number, since it uses less digits than its factorization.

30195000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

The square root of 30195000 is about 5494.9977252043. The cubic root of 30195000 is about 311.3950308767.

The spelling of 30195000 in words is "thirty million, one hundred ninety-five thousand".