30245472 has 36 divisors (see below), whose sum is σ = 86011380. Its totient is φ = 10081728.

The previous prime is 30245471. The next prime is 30245477. The reversal of 30245472 is 27454203.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30245471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52222 + ... + 52797.

It is an arithmetic number, because the mean of its divisors is an integer number (2389205).

Almost surely, 2^30245472 is an apocalyptic number.

30245472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30245472 is an abundant number, since it is smaller than the sum of its proper divisors (55765908).

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

30245472 is a wasteful number, since it uses less digits than its factorization.

30245472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105035 (or 105024 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 30245472 is about 5499.5883482312. The cubic root of 30245472 is about 311.5684368611.

Adding to 30245472 its reverse (27454203), we get a palindrome (57699675).

The spelling of 30245472 in words is "thirty million, two hundred forty-five thousand, four hundred seventy-two".