30947274 has 12 divisors (see below), whose sum is σ = 67052466. Its totient is φ = 10315752.

The previous prime is 30947261. The next prime is 30947311. The reversal of 30947274 is 47274903.

It can be written as a sum of positive squares in only one way, i.e., 26967249 + 3980025 = 5193^2 + 1995^2 .

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 859629 + ... + 859664.

Almost surely, 2^30947274 is an apocalyptic number.

30947274 is an abundant number, since it is smaller than the sum of its proper divisors (36105192).

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

30947274 is a wasteful number, since it uses less digits than its factorization.

30947274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719301 (or 1719298 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 30947274 is about 5563.0274131987. The cubic root of 30947274 is about 313.9598647770.

The spelling of 30947274 in words is "thirty million, nine hundred forty-seven thousand, two hundred seventy-four".