30340220 has 24 divisors (see below), whose sum is σ = 66485664. Its totient is φ = 11608256.

The previous prime is 30340201. The next prime is 30340229. The reversal of 30340220 is 2204303.

It is a junction number, because it is equal to n+sod(n) for n = 30340195 and 30340204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30340229) 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, 32519 + ... + 33438.

It is an arithmetic number, because the mean of its divisors is an integer number (2770236).

Almost surely, 2^30340220 is an apocalyptic number.

It is an amenable number.

30340220 is an abundant number, since it is smaller than the sum of its proper divisors (36145444).

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

30340220 is a wasteful number, since it uses less digits than its factorization.

30340220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65989 (or 65987 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 30340220 is about 5508.1957118461. The cubic root of 30340220 is about 311.8934410376.

Adding to 30340220 its reverse (2204303), we get a palindrome (32544523).

The spelling of 30340220 in words is "thirty million, three hundred forty thousand, two hundred twenty".