30489269 has 4 divisors (see below), whose sum is σ = 30657900. Its totient is φ = 30320640.

The previous prime is 30489247. The next prime is 30489293. The reversal of 30489269 is 96298403.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 786769 + 29702500 = 887^2 + 5450^2 .

It is a cyclic number.

It is not a de Polignac number, because 30489269 - 2¹² = 30485173 is a prime.

It is a super-2 number, since 2×30489269² = 1859191048308722, 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 (30489299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84044 + ... + 84405.

It is an arithmetic number, because the mean of its divisors is an integer number (7664475).

Almost surely, 2^30489269 is an apocalyptic number.

It is an amenable number.

30489269 is a deficient number, since it is larger than the sum of its proper divisors (168631).

30489269 is a wasteful number, since it uses less digits than its factorization.

30489269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168630.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 30489269 is about 5521.7088840322. The cubic root of 30489269 is about 312.4033416260.

The spelling of 30489269 in words is "thirty million, four hundred eighty-nine thousand, two hundred sixty-nine".