30990269 has 8 divisors (see below), whose sum is σ = 34240320. Its totient is φ = 27898816.

The previous prime is 30990263. The next prime is 30990283. The reversal of 30990269 is 96209903.

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

It is not a de Polignac number, because 30990269 - 2¹² = 30986173 is a prime.

It is a super-2 number, since 2×30990269² = 1920793545384722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30990263) 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, 39239 + ... + 40020.

It is an arithmetic number, because the mean of its divisors is an integer number (4280040).

Almost surely, 2^30990269 is an apocalyptic number.

It is an amenable number.

30990269 is a deficient number, since it is larger than the sum of its proper divisors (3250051).

30990269 is a wasteful number, since it uses less digits than its factorization.

30990269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79299.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 30990269 is about 5566.8904246446. The cubic root of 30990269 is about 314.1051921486.

The spelling of 30990269 in words is "thirty million, nine hundred ninety thousand, two hundred sixty-nine".