30980257 has 8 divisors (see below), whose sum is σ = 38624832. Its totient is φ = 24140400.

The previous prime is 30980233. The next prime is 30980263. The reversal of 30980257 is 75208903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30980257 - 2¹¹ = 30978209 is a prime.

It is a pancake number, because a pancake can be divided into 30980257 parts by 7871 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30980227) 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, 201094 + ... + 201247.

It is an arithmetic number, because the mean of its divisors is an integer number (4828104).

Almost surely, 2^30980257 is an apocalyptic number.

It is an amenable number.

30980257 is a deficient number, since it is larger than the sum of its proper divisors (7644575).

30980257 is a wasteful number, since it uses less digits than its factorization.

30980257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402359.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 30980257 is about 5565.9911067123. The cubic root of 30980257 is about 314.0713626056.

The spelling of 30980257 in words is "thirty million, nine hundred eighty thousand, two hundred fifty-seven".