30220704 has 36 divisors (see below), whose sum is σ = 85940946. Its totient is φ = 10073472.

The previous prime is 30220669. The next prime is 30220717. The reversal of 30220704 is 40702203.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26010000 + 4210704 = 5100^2 + 2052^2 .

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

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52179 + ... + 52754.

Almost surely, 2^30220704 is an apocalyptic number.

It is an amenable number.

30220704 is an abundant number, since it is smaller than the sum of its proper divisors (55720242).

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

30220704 is a wasteful number, since it uses less digits than its factorization.

30220704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104949 (or 104938 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 30220704 is about 5497.3360821401. The cubic root of 30220704 is about 311.4833658962.

Adding to 30220704 its reverse (40702203), we get a palindrome (70922907).

The spelling of 30220704 in words is "thirty million, two hundred twenty thousand, seven hundred four".