30989071438 has 8 divisors (see below), whose sum is σ = 50059269288. Its totient is φ = 14302648344.

The previous prime is 30989071417. The next prime is 30989071439. The reversal of 30989071438 is 83417098903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30989071439) 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, 595943656 + ... + 595943707.

It is an arithmetic number, because the mean of its divisors is an integer number (6257408661).

Almost surely, 2^30989071438 is an apocalyptic number.

30989071438 is a deficient number, since it is larger than the sum of its proper divisors (19070197850).

30989071438 is a wasteful number, since it uses less digits than its factorization.

30989071438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191887378.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 30989071438 in words is "thirty billion, nine hundred eighty-nine million, seventy-one thousand, four hundred thirty-eight".