30813058 has 12 divisors (see below), whose sum is σ = 47424258. Its totient is φ = 15006240.

The previous prime is 30813053. The next prime is 30813067. The reversal of 30813058 is 85031803.

It can be written as a sum of positive squares in 3 ways, for example, as 859329 + 29953729 = 927^2 + 5473^2 .

It is a super-3 number, since 3×30813058³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (30813053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49960 + ... + 50572.

Almost surely, 2^30813058 is an apocalyptic number.

30813058 is a deficient number, since it is larger than the sum of its proper divisors (16611200).

30813058 is an frugal number, since it uses more digits than its factorization.

30813058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 30813058 is about 5550.9510896782. The cubic root of 30813058 is about 313.5053336123.

It can be divided in two parts, 308 and 13058, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 30813058 in words is "thirty million, eight hundred thirteen thousand, fifty-eight".