29040381 has 12 divisors (see below), whose sum is σ = 41993952. Its totient is φ = 19338696.

The previous prime is 29040377. The next prime is 29040383. The reversal of 29040381 is 18304092.

It is not a de Polignac number, because 29040381 - 2² = 29040377 is a prime.

It is a super-2 number, since 2×29040381² = 1686687457250322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29040383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14800 + ... + 16646.

It is an arithmetic number, because the mean of its divisors is an integer number (3499496).

Almost surely, 2^29040381 is an apocalyptic number.

It is an amenable number.

29040381 is a deficient number, since it is larger than the sum of its proper divisors (12953571).

29040381 is a wasteful number, since it uses less digits than its factorization.

29040381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3600 (or 3597 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 29040381 is about 5388.9127845977. The cubic root of 29040381 is about 307.3742178403.

The spelling of 29040381 in words is "twenty-nine million, forty thousand, three hundred eighty-one".