29429986 has 16 divisors (see below), whose sum is σ = 45110520. Its totient is φ = 14396800.

The previous prime is 29429971. The next prime is 29429987. The reversal of 29429986 is 68992492.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20839225 + 8590761 = 4565^2 + 2931^2 .

It is a super-2 number, since 2×29429986² = 1732248151920392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29429987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17160 + ... + 18796.

Almost surely, 2^29429986 is an apocalyptic number.

29429986 is a deficient number, since it is larger than the sum of its proper divisors (15680534).

29429986 is a wasteful number, since it uses less digits than its factorization.

29429986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829.

The product of its digits is 559872, while the sum is 49.

The square root of 29429986 is about 5424.9411056711. The cubic root of 29429986 is about 308.7426910146.

The spelling of 29429986 in words is "twenty-nine million, four hundred twenty-nine thousand, nine hundred eighty-six".