30520870438 has 8 divisors (see below), whose sum is σ = 48190848120. Its totient is φ = 14457254400.

The previous prime is 30520870433. The next prime is 30520870439. The reversal of 30520870438 is 83407802503.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30520870438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30520870433) 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, 401590363 + ... + 401590438.

It is an arithmetic number, because the mean of its divisors is an integer number (6023856015).

Almost surely, 2^30520870438 is an apocalyptic number.

30520870438 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

30520870438 is a deficient number, since it is larger than the sum of its proper divisors (17669977682).

30520870438 is a wasteful number, since it uses less digits than its factorization.

30520870438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803180822.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 30520870438 in words is "thirty billion, five hundred twenty million, eight hundred seventy thousand, four hundred thirty-eight".