30052780 has 12 divisors (see below), whose sum is σ = 63110880. Its totient is φ = 12021104.

The previous prime is 30052751. The next prime is 30052807. The reversal of 30052780 is 8725003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 751300 + ... + 751339.

It is an arithmetic number, because the mean of its divisors is an integer number (5259240).

Almost surely, 2^30052780 is an apocalyptic number.

It is an amenable number.

30052780 is an abundant number, since it is smaller than the sum of its proper divisors (33058100).

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

30052780 is a wasteful number, since it uses less digits than its factorization.

30052780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502648 (or 1502646 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 30052780 is about 5482.0415905026. The cubic root of 30052780 is about 310.9053657607.

Adding to 30052780 its reverse (8725003), we get a palindrome (38777783).

The spelling of 30052780 in words is "thirty million, fifty-two thousand, seven hundred eighty".