29706920 has 16 divisors (see below), whose sum is σ = 66840660. Its totient is φ = 11882752.

The previous prime is 29706917. The next prime is 29706931. The reversal of 29706920 is 2960792.

It can be written as a sum of positive squares in 2 ways, for example, as 29138404 + 568516 = 5398^2 + 754^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371297 + ... + 371376.

Almost surely, 2^29706920 is an apocalyptic number.

29706920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29706920 is an abundant number, since it is smaller than the sum of its proper divisors (37133740).

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

29706920 is a wasteful number, since it uses less digits than its factorization.

29706920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742684 (or 742680 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 29706920 is about 5450.4054895026. The cubic root of 29706920 is about 309.7080845483.

The spelling of 29706920 in words is "twenty-nine million, seven hundred six thousand, nine hundred twenty".