30776730 has 16 divisors (see below), whose sum is σ = 73864224. Its totient is φ = 8207120.

The previous prime is 30776717. The next prime is 30776761. The reversal of 30776730 is 3767703.

It is a junction number, because it is equal to n+sod(n) for n = 30776691 and 30776700.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512916 + ... + 512975.

It is an arithmetic number, because the mean of its divisors is an integer number (4616514).

Almost surely, 2^30776730 is an apocalyptic number.

30776730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30776730 is an abundant number, since it is smaller than the sum of its proper divisors (43087494).

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

30776730 is a wasteful number, since it uses less digits than its factorization.

30776730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025901.

The product of its (nonzero) digits is 18522, while the sum is 33.

The square root of 30776730 is about 5547.6778925961. The cubic root of 30776730 is about 313.3820795847.

The spelling of 30776730 in words is "thirty million, seven hundred seventy-six thousand, seven hundred thirty".