30443400309 has 16 divisors (see below), whose sum is σ = 46423922688. Its totient is φ = 17383486512.

The previous prime is 30443400307. The next prime is 30443400329. The reversal of 30443400309 is 90300434403.

It is not a de Polignac number, because 30443400309 - 2¹ = 30443400307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30443400307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501537 + ... + 558950.

It is an arithmetic number, because the mean of its divisors is an integer number (2901495168).

Almost surely, 2^30443400309 is an apocalyptic number.

It is an amenable number.

30443400309 is a deficient number, since it is larger than the sum of its proper divisors (15980522379).

30443400309 is a wasteful number, since it uses less digits than its factorization.

30443400309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061864.

The product of its (nonzero) digits is 15552, while the sum is 30.

The spelling of 30443400309 in words is "thirty billion, four hundred forty-three million, four hundred thousand, three hundred nine".