30393980 has 24 divisors (see below), whose sum is σ = 64489488. Its totient is φ = 12031488.

The previous prime is 30393973. The next prime is 30393989. The reversal of 30393980 is 8939303.

It is a super-3 number, since 3×30393980³ (a number of 23 digits) contains 333 as substring.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 30393980.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30393989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5894 + ... + 9773.

It is an arithmetic number, because the mean of its divisors is an integer number (2687062).

Almost surely, 2^30393980 is an apocalyptic number.

It is an amenable number.

30393980 is an abundant number, since it is smaller than the sum of its proper divisors (34095508).

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

30393980 is a wasteful number, since it uses less digits than its factorization.

30393980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15773 (or 15771 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 30393980 is about 5513.0735529285. The cubic root of 30393980 is about 312.0775475660.

The spelling of 30393980 in words is "thirty million, three hundred ninety-three thousand, nine hundred eighty".