29306140 has 24 divisors (see below), whose sum is σ = 64219680. Its totient is φ = 11212608.

The previous prime is 29306131. The next prime is 29306161. The reversal of 29306140 is 4160392.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31395 + ... + 32314.

It is an arithmetic number, because the mean of its divisors is an integer number (2675820).

Almost surely, 2^29306140 is an apocalyptic number.

29306140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29306140 is an abundant number, since it is smaller than the sum of its proper divisors (34913540).

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

29306140 is a wasteful number, since it uses less digits than its factorization.

29306140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63741 (or 63739 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 29306140 is about 5413.5145700367. The cubic root of 29306140 is about 308.3090028687.

The spelling of 29306140 in words is "twenty-nine million, three hundred six thousand, one hundred forty".