307646066 has 32 divisors (see below), whose sum is σ = 575178240. Its totient is φ = 120159936.

The previous prime is 307646051. The next prime is 307646071. The reversal of 307646066 is 660646703.

It is a super-2 number, since 2×307646066² = 189292203850552712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3680 + ... + 25076.

It is an arithmetic number, because the mean of its divisors is an integer number (17974320).

Almost surely, 2^307646066 is an apocalyptic number.

307646066 is a deficient number, since it is larger than the sum of its proper divisors (267532174).

307646066 is a wasteful number, since it uses less digits than its factorization.

307646066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21498.

The product of its (nonzero) digits is 108864, while the sum is 38.

The square root of 307646066 is about 17539.8422455848. The cubic root of 307646066 is about 675.0725599181.

The spelling of 307646066 in words is "three hundred seven million, six hundred forty-six thousand, sixty-six".