30770949 has 16 divisors (see below), whose sum is σ = 45264960. Its totient is φ = 18437760.

The previous prime is 30770933. The next prime is 30770989. The reversal of 30770949 is 94907703.

It is not a de Polignac number, because 30770949 - 2⁴ = 30770933 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30770989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2302 + ... + 8175.

It is an arithmetic number, because the mean of its divisors is an integer number (2829060).

Almost surely, 2^30770949 is an apocalyptic number.

It is an amenable number.

30770949 is a deficient number, since it is larger than the sum of its proper divisors (14494011).

30770949 is a wasteful number, since it uses less digits than its factorization.

30770949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10580.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 30770949 is about 5547.1568393187. The cubic root of 30770949 is about 313.3624568020.

The spelling of 30770949 in words is "thirty million, seven hundred seventy thousand, nine hundred forty-nine".