30500780 has 12 divisors (see below), whose sum is σ = 64051680. Its totient is φ = 12200304.

The previous prime is 30500773. The next prime is 30500831. The reversal of 30500780 is 8700503.

It is a congruent number.

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, 762500 + ... + 762539.

It is an arithmetic number, because the mean of its divisors is an integer number (5337640).

Almost surely, 2^30500780 is an apocalyptic number.

It is an amenable number.

30500780 is an abundant number, since it is smaller than the sum of its proper divisors (33550900).

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

30500780 is a wasteful number, since it uses less digits than its factorization.

30500780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525048 (or 1525046 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 30500780 is about 5522.7511260241. The cubic root of 30500780 is about 312.4426518765.

The spelling of 30500780 in words is "thirty million, five hundred thousand, seven hundred eighty".