30254220 has 72 divisors (see below), whose sum is σ = 97179264. Its totient is φ = 7592448.

The previous prime is 30254219. The next prime is 30254227. The reversal of 30254220 is 2245203.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30254193 and 30254202.

It is not an unprimeable number, because it can be changed into a prime (30254227) 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, 1884 + ... + 8003.

It is an arithmetic number, because the mean of its divisors is an integer number (1349712).

Almost surely, 2^30254220 is an apocalyptic number.

30254220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30254220 is an abundant number, since it is smaller than the sum of its proper divisors (66925044).

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

30254220 is a wasteful number, since it uses less digits than its factorization.

30254220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9919 (or 9914 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 30254220 is about 5500.3836229849. The cubic root of 30254220 is about 311.5984726292.

Adding to 30254220 its reverse (2245203), we get a palindrome (32499423).

The spelling of 30254220 in words is "thirty million, two hundred fifty-four thousand, two hundred twenty".