67049930 has 16 divisors (see below), whose sum is σ = 122047560. Its totient is φ = 26518272.

The previous prime is 67049911. The next prime is 67049947. The reversal of 67049930 is 3994076.

It can be written as a sum of positive squares in 4 ways, for example, as 45306361 + 21743569 = 6731^2 + 4663^2 .

It is a super-2 number, since 2×67049930² = 8991386226009800, which contains 22 as substring.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 36779 + ... + 38558.

Almost surely, 2^67049930 is an apocalyptic number.

67049930 is a deficient number, since it is larger than the sum of its proper divisors (54997630).

67049930 is a wasteful number, since it uses less digits than its factorization.

67049930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75433.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 67049930 is about 8188.4021640366. The cubic root of 67049930 is about 406.2556770804.

The spelling of 67049930 in words is "sixty-seven million, forty-nine thousand, nine hundred thirty".