30206615404 has 48 divisors (see below), whose sum is σ = 61866782208. Its totient is φ = 12634691328.

The previous prime is 30206615401. The next prime is 30206615449. The reversal of 30206615404 is 40451660203.

It is a super-2 number, since 2×30206615404² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30206615401) 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, 1636692 + ... + 1655044.

It is an arithmetic number, because the mean of its divisors is an integer number (1288891296).

Almost surely, 2^30206615404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30206615404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30933391104).

30206615404 is an abundant number, since it is smaller than the sum of its proper divisors (31660166804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30206615404 is a wasteful number, since it uses less digits than its factorization.

30206615404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19774 (or 19772 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 30206615404 in words is "thirty billion, two hundred six million, six hundred fifteen thousand, four hundred four".