30744641 has 4 divisors (see below), whose sum is σ = 32362800. Its totient is φ = 29126484.

The previous prime is 30744587. The next prime is 30744647. The reversal of 30744641 is 14644703.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14644703 = 1439 ⋅10177.

It is a cyclic number.

It is not a de Polignac number, because 30744641 - 2⁶ = 30744577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30744647) 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, 809051 + ... + 809088.

It is an arithmetic number, because the mean of its divisors is an integer number (8090700).

Almost surely, 2^30744641 is an apocalyptic number.

It is an amenable number.

30744641 is a deficient number, since it is larger than the sum of its proper divisors (1618159).

30744641 is a wasteful number, since it uses less digits than its factorization.

30744641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618158.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 30744641 is about 5544.7850273929. The cubic root of 30744641 is about 313.2731269816.

The spelling of 30744641 in words is "thirty million, seven hundred forty-four thousand, six hundred forty-one".