30772044 has 36 divisors (see below), whose sum is σ = 78034320. Its totient is φ = 10224480.

The previous prime is 30772033. The next prime is 30772061. The reversal of 30772044 is 44027703.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 30771999 and 30772017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11734 + ... + 14114.

It is an arithmetic number, because the mean of its divisors is an integer number (2167620).

Almost surely, 2^30772044 is an apocalyptic number.

It is an amenable number.

30772044 is an abundant number, since it is smaller than the sum of its proper divisors (47262276).

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

30772044 is a wasteful number, since it uses less digits than its factorization.

30772044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750 (or 2745 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 30772044 is about 5547.2555376510. The cubic root of 30772044 is about 313.3661738125.

Adding to 30772044 its reverse (44027703), we get a palindrome (74799747).

The spelling of 30772044 in words is "thirty million, seven hundred seventy-two thousand, forty-four".