30205572 has 12 divisors (see below), whose sum is σ = 70479696. Its totient is φ = 10068520.

The previous prime is 30205541. The next prime is 30205597. The reversal of 30205572 is 27550203.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1258554 + ... + 1258577.

It is an arithmetic number, because the mean of its divisors is an integer number (5873308).

Almost surely, 2^30205572 is an apocalyptic number.

It is an amenable number.

30205572 is an abundant number, since it is smaller than the sum of its proper divisors (40274124).

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

30205572 is a wasteful number, since it uses less digits than its factorization.

30205572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2517138 (or 2517136 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 30205572 is about 5495.9596068385. The cubic root of 30205572 is about 311.4313689473.

Adding to 30205572 its reverse (27550203), we get a palindrome (57755775).

The spelling of 30205572 in words is "thirty million, two hundred five thousand, five hundred seventy-two".