30744073 has 4 divisors (see below), whose sum is σ = 30766288. Its totient is φ = 30721860.

The previous prime is 30744067. The next prime is 30744083. The reversal of 30744073 is 37044703.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30744073 - 2¹⁷ = 30613001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30744013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8883 + ... + 11848.

It is an arithmetic number, because the mean of its divisors is an integer number (7691572).

Almost surely, 2^30744073 is an apocalyptic number.

It is an amenable number.

30744073 is a deficient number, since it is larger than the sum of its proper divisors (22215).

30744073 is a wasteful number, since it uses less digits than its factorization.

30744073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22214.

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 30744073 is about 5544.7338078577. The cubic root of 30744073 is about 313.2711977540.

Adding to 30744073 its reverse (37044703), we get a palindrome (67788776).

The spelling of 30744073 in words is "thirty million, seven hundred forty-four thousand, seventy-three".