30211772 has 6 divisors (see below), whose sum is σ = 52870608. Its totient is φ = 15105884.

The previous prime is 30211759. The next prime is 30211777. The reversal of 30211772 is 27711203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3776468 + ... + 3776475.

It is an arithmetic number, because the mean of its divisors is an integer number (8811768).

Almost surely, 2^30211772 is an apocalyptic number.

It is an amenable number.

30211772 is a deficient number, since it is larger than the sum of its proper divisors (22658836).

30211772 is a wasteful number, since it uses less digits than its factorization.

30211772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7552947 (or 7552945 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 30211772 is about 5496.5236286220. The cubic root of 30211772 is about 311.4526756386.

Adding to 30211772 its reverse (27711203), we get a palindrome (57922975).

The spelling of 30211772 in words is "thirty million, two hundred eleven thousand, seven hundred seventy-two".