30559144 has 96 divisors (see below), whose sum is σ = 76744800. Its totient is φ = 11249280.

The previous prime is 30559141. The next prime is 30559153. The reversal of 30559144 is 44195503.

It is a super-2 number, since 2×30559144² = 1867722564025472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30559141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81742 + ... + 82114.

It is an arithmetic number, because the mean of its divisors is an integer number (799425).

Almost surely, 2^30559144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30559144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38372400).

30559144 is an abundant number, since it is smaller than the sum of its proper divisors (46185656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30559144 is a wasteful number, since it uses less digits than its factorization.

30559144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 30559144 is about 5528.0325614092. The cubic root of 30559144 is about 312.6418138212.

It can be divided in two parts, 30559 and 144, that added together give a palindrome (30703).

The spelling of 30559144 in words is "thirty million, five hundred fifty-nine thousand, one hundred forty-four".