67500030 has 64 divisors (see below), whose sum is σ = 184742208. Its totient is φ = 15636480.

The previous prime is 67500019. The next prime is 67500031. The reversal of 67500030 is 3000576.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67500031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1540 + ... + 11720.

It is an arithmetic number, because the mean of its divisors is an integer number (2886597).

Almost surely, 2^67500030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67500030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92371104).

67500030 is an abundant number, since it is smaller than the sum of its proper divisors (117242178).

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

67500030 is a wasteful number, since it uses less digits than its factorization.

67500030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10221.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 67500030 is about 8215.8401883191. The cubic root of 67500030 is about 407.1627028096.

It can be divided in two parts, 675000 and 30, that multiplied together give a square (20250000 = 4500²).

The spelling of 67500030 in words is "sixty-seven million, five hundred thousand, thirty".