30491860290 has 32 divisors (see below), whose sum is σ = 74882339136. Its totient is φ = 7942065600.

The previous prime is 30491860283. The next prime is 30491860309. The reversal of 30491860290 is 9206819403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11817261 + ... + 11819840.

It is an arithmetic number, because the mean of its divisors is an integer number (2340073098).

Almost surely, 2^30491860290 is an apocalyptic number.

30491860290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30491860290 is an abundant number, since it is smaller than the sum of its proper divisors (44390478846).

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

30491860290 is a wasteful number, since it uses less digits than its factorization.

30491860290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23637154.

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 30491860290 in words is "thirty billion, four hundred ninety-one million, eight hundred sixty thousand, two hundred ninety".