30380877 has 24 divisors (see below), whose sum is σ = 45267768. Its totient is φ = 19622400.

The previous prime is 30380873. The next prime is 30380879. The reversal of 30380877 is 77808303.

It can be written as a sum of positive squares in 4 ways, for example, as 6380676 + 24000201 = 2526^2 + 4899^2 .

It is not a de Polignac number, because 30380877 - 2² = 30380873 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30380873) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103543 + ... + 103835.

It is an arithmetic number, because the mean of its divisors is an integer number (1886157).

Almost surely, 2^30380877 is an apocalyptic number.

It is an amenable number.

30380877 is a deficient number, since it is larger than the sum of its proper divisors (14886891).

30380877 is a wasteful number, since it uses less digits than its factorization.

30380877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 30380877 is about 5511.8850677423. The cubic root of 30380877 is about 312.0326950451.

The spelling of 30380877 in words is "thirty million, three hundred eighty thousand, eight hundred seventy-seven".