30187244280 has 64 divisors (see below), whose sum is σ = 91579312800. Its totient is φ = 7959480320.

The previous prime is 30187244261. The next prime is 30187244281. The reversal of 30187244280 is 8244278103.

It is a super-2 number, since 2×30187244280² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30187244281) 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, 1402581 + ... + 1423940.

Almost surely, 2^30187244280 is an apocalyptic number.

30187244280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30187244280 is an abundant number, since it is smaller than the sum of its proper divisors (61392068520).

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

30187244280 is a wasteful number, since it uses less digits than its factorization.

30187244280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826624 (or 2826620 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The spelling of 30187244280 in words is "thirty billion, one hundred eighty-seven million, two hundred forty-four thousand, two hundred eighty".