30221404 has 24 divisors (see below), whose sum is σ = 54867456. Its totient is φ = 14550000.

The previous prime is 30221369. The next prime is 30221431. The reversal of 30221404 is 40412203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30639 + ... + 31609.

It is an arithmetic number, because the mean of its divisors is an integer number (2286144).

Almost surely, 2^30221404 is an apocalyptic number.

It is an amenable number.

30221404 is a deficient number, since it is larger than the sum of its proper divisors (24646052).

30221404 is a wasteful number, since it uses less digits than its factorization.

30221404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257 (or 1255 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 30221404 is about 5497.3997489722. The cubic root of 30221404 is about 311.4857708332.

Adding to 30221404 its reverse (40412203), we get a palindrome (70633607).

It can be divided in two parts, 30221 and 404, that added together give a square (30625 = 175²).

The spelling of 30221404 in words is "thirty million, two hundred twenty-one thousand, four hundred four".