30776530 has 16 divisors (see below), whose sum is σ = 57806784. Its totient is φ = 11775280.

The previous prime is 30776509. The next prime is 30776531. The reversal of 30776530 is 3567703.

It is a junction number, because it is equal to n+sod(n) for n = 30776492 and 30776501.

It is not an unprimeable number, because it can be changed into a prime (30776531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66676 + ... + 67135.

It is an arithmetic number, because the mean of its divisors is an integer number (3612924).

Almost surely, 2^30776530 is an apocalyptic number.

30776530 is a deficient number, since it is larger than the sum of its proper divisors (27030254).

30776530 is a wasteful number, since it uses less digits than its factorization.

30776530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133841.

The product of its (nonzero) digits is 13230, while the sum is 31.

The square root of 30776530 is about 5547.6598670070. The cubic root of 30776530 is about 313.3814007541.

The spelling of 30776530 in words is "thirty million, seven hundred seventy-six thousand, five hundred thirty".