30970080 has 192 divisors, whose sum is σ = 111041280. Its totient is φ = 8059392.

The previous prime is 30970033. The next prime is 30970081. The reversal of 30970080 is 8007903.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30970081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289387 + ... + 289493.

It is an arithmetic number, because the mean of its divisors is an integer number (578340).

Almost surely, 2^30970080 is an apocalyptic number.

30970080 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 30970080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55520640).

30970080 is an abundant number, since it is smaller than the sum of its proper divisors (80071200).

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

30970080 is a wasteful number, since it uses less digits than its factorization.

30970080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 30970080 is about 5565.0768188768. The cubic root of 30970080 is about 314.0369680737.

Adding to 30970080 its reverse (8007903), we get a palindrome (38977983).

The spelling of 30970080 in words is "thirty million, nine hundred seventy thousand, eighty".