30068940 has 96 divisors (see below), whose sum is σ = 95074560. Its totient is φ = 7033600.

The previous prime is 30068923. The next prime is 30068953. The reversal of 30068940 is 4986003.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 30068898 and 30068907.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18355 + ... + 19925.

It is an arithmetic number, because the mean of its divisors is an integer number (990360).

Almost surely, 2^30068940 is an apocalyptic number.

30068940 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 30068940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47537280).

30068940 is an abundant number, since it is smaller than the sum of its proper divisors (65005620).

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

30068940 is a wasteful number, since it uses less digits than its factorization.

30068940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623 (or 1621 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 30068940 is about 5483.5152958663. The cubic root of 30068940 is about 310.9610825190.

The spelling of 30068940 in words is "thirty million, sixty-eight thousand, nine hundred forty".