30445768 has 8 divisors (see below), whose sum is σ = 57085830. Its totient is φ = 15222880.

The previous prime is 30445747. The next prime is 30445769. The reversal of 30445768 is 86754403.

It can be written as a sum of positive squares in only one way, i.e., 26193924 + 4251844 = 5118^2 + 2062^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (30445769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1902853 + ... + 1902868.

Almost surely, 2^30445768 is an apocalyptic number.

It is an amenable number.

30445768 is a deficient number, since it is larger than the sum of its proper divisors (26640062).

30445768 is a wasteful number, since it uses less digits than its factorization.

30445768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3805727 (or 3805723 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 30445768 is about 5517.7683894850. The cubic root of 30445768 is about 312.2546955995.

It can be divided in two parts, 30445 and 768, that added together give a palindrome (31213).

The spelling of 30445768 in words is "thirty million, four hundred forty-five thousand, seven hundred sixty-eight".