29916666 has 24 divisors (see below), whose sum is σ = 69806100. Its totient is φ = 9205056.

The previous prime is 29916619. The next prime is 29916671. The reversal of 29916666 is 66661992.

It can be written as a sum of positive squares in 2 ways, for example, as 29322225 + 594441 = 5415^2 + 771^2 .

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63691 + ... + 64158.

Almost surely, 2^29916666 is an apocalyptic number.

29916666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

29916666 is an abundant number, since it is smaller than the sum of its proper divisors (39889434).

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

29916666 is a wasteful number, since it uses less digits than its factorization.

29916666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127870 (or 127867 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 29916666 is about 5469.6129661979. The cubic root of 29916666 is about 310.4352747690.

The spelling of 29916666 in words is "twenty-nine million, nine hundred sixteen thousand, six hundred sixty-six".