30226780 has 24 divisors (see below), whose sum is σ = 65193408. Its totient is φ = 11763648.

The previous prime is 30226771. The next prime is 30226783. The reversal of 30226780 is 8762203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30226783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19684 + ... + 21163.

It is an arithmetic number, because the mean of its divisors is an integer number (2716392).

Almost surely, 2^30226780 is an apocalyptic number.

It is an amenable number.

30226780 is an abundant number, since it is smaller than the sum of its proper divisors (34966628).

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

30226780 is a wasteful number, since it uses less digits than its factorization.

30226780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40893 (or 40891 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 30226780 is about 5497.8886856683. Note that the first 3 decimals coincide. The cubic root of 30226780 is about 311.5042395121.

Adding to 30226780 its reverse (8762203), we get a palindrome (38988983).

The spelling of 30226780 in words is "thirty million, two hundred twenty-six thousand, seven hundred eighty".