30000302730 has 48 divisors (see below), whose sum is σ = 82589072904. Its totient is φ = 7529487360.

The previous prime is 30000302707. The next prime is 30000302753. The reversal of 30000302730 is 3720300003.

It is an interprime number because it is at equal distance from previous prime (30000302707) and next prime (30000302753).

It can be written as a sum of positive squares in 4 ways, for example, as 25511436729 + 4488866001 = 159723^2 + 66999^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9802491 + ... + 9805550.

Almost surely, 2^30000302730 is an apocalyptic number.

30000302730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30000302730 is an abundant number, since it is smaller than the sum of its proper divisors (52588770174).

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

30000302730 is a wasteful number, since it uses less digits than its factorization.

30000302730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19608071 (or 19608068 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 18.

Adding to 30000302730 its reverse (3720300003), we get a palindrome (33720602733).

The spelling of 30000302730 in words is "thirty billion, three hundred two thousand, seven hundred thirty".