30406589385 has 32 divisors (see below), whose sum is σ = 51581256192. Its totient is φ = 15242496000.

The previous prime is 30406589383. The next prime is 30406589393. The reversal of 30406589385 is 58398560403.

It is a happy number.

It is not a de Polignac number, because 30406589385 - 2¹ = 30406589383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30406589383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112117 + ... + 270893.

It is an arithmetic number, because the mean of its divisors is an integer number (1611914256).

Almost surely, 2^30406589385 is an apocalyptic number.

It is an amenable number.

30406589385 is a deficient number, since it is larger than the sum of its proper divisors (21174666807).

30406589385 is a wasteful number, since it uses less digits than its factorization.

30406589385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159553.

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 30406589385 in words is "thirty billion, four hundred six million, five hundred eighty-nine thousand, three hundred eighty-five".