30880585 has 16 divisors (see below), whose sum is σ = 40198032. Its totient is φ = 22681600.

The previous prime is 30880537. The next prime is 30880589. The reversal of 30880585 is 58508803.

It can be written as a sum of positive squares in 8 ways, for example, as 553536 + 30327049 = 744^2 + 5507^2 .

It is not a de Polignac number, because 30880585 - 2¹¹ = 30878537 is a prime.

It is a super-2 number, since 2×30880585² = 1907221059884450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30880589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 946 + ... + 7915.

It is an arithmetic number, because the mean of its divisors is an integer number (2512377).

Almost surely, 2^30880585 is an apocalyptic number.

It is an amenable number.

30880585 is a deficient number, since it is larger than the sum of its proper divisors (9317447).

30880585 is a wasteful number, since it uses less digits than its factorization.

30880585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8924.

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 30880585 is about 5557.0302320574. The cubic root of 30880585 is about 313.7341827870.

The spelling of 30880585 in words is "thirty million, eight hundred eighty thousand, five hundred eighty-five".