30000302780 has 48 divisors (see below), whose sum is σ = 73675176960. Its totient is φ = 10046611008.

The previous prime is 30000302753. The next prime is 30000302791. The reversal of 30000302780 is 8720300003.

It is a congruent number.

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, 2485700 + ... + 2497739.

It is an arithmetic number, because the mean of its divisors is an integer number (1534899520).

Almost surely, 2^30000302780 is an apocalyptic number.

It is an amenable number.

30000302780 is an abundant number, since it is smaller than the sum of its proper divisors (43674874180).

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

30000302780 is a wasteful number, since it uses less digits than its factorization.

30000302780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4983498 (or 4983496 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 30000302780 its reverse (8720300003), we get a palindrome (38720602783).

The spelling of 30000302780 in words is "thirty billion, three hundred two thousand, seven hundred eighty".