30390569 has 4 divisors (see below), whose sum is σ = 33153360. Its totient is φ = 27627780.

The previous prime is 30390539. The next prime is 30390629. The reversal of 30390569 is 96509303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30390569 - 2¹⁶ = 30325033 is a prime.

It is a super-2 number, since 2×30390569² = 1847173368287522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30390539) 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, 1381379 + ... + 1381400.

It is an arithmetic number, because the mean of its divisors is an integer number (8288340).

Almost surely, 2^30390569 is an apocalyptic number.

It is an amenable number.

30390569 is a deficient number, since it is larger than the sum of its proper divisors (2762791).

30390569 is a wasteful number, since it uses less digits than its factorization.

30390569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762790.

The product of its (nonzero) digits is 21870, while the sum is 35.

The square root of 30390569 is about 5512.7641886807. The cubic root of 30390569 is about 312.0658727065.

The spelling of 30390569 in words is "thirty million, three hundred ninety thousand, five hundred sixty-nine".