30375000 has 168 divisors, whose sum is σ = 106639260. Its totient is φ = 8100000.

The previous prime is 30374987. The next prime is 30375001. The reversal of 30375000 is 57303.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30375001) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 6074998 + ... + 6075002.

Almost surely, 2^30375000 is an apocalyptic number.

30375000 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 30375000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53319630).

30375000 is an abundant number, since it is smaller than the sum of its proper divisors (76264260).

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

30375000 is an frugal number, since it uses more digits than its factorization.

30375000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 18.

The square root of 30375000 is about 5511.3519212622. The cubic root of 30375000 is about 312.0125734578.

The spelling of 30375000 in words is "thirty million, three hundred seventy-five thousand".