29403381 has 12 divisors (see below), whose sum is σ = 45605472. Its totient is φ = 16801848.

The previous prime is 29403373. The next prime is 29403389. The reversal of 29403381 is 18330492.

It is an interprime number because it is at equal distance from previous prime (29403373) and next prime (29403389).

It is not a de Polignac number, because 29403381 - 2³ = 29403373 is a prime.

It is a super-2 number, since 2×29403381² = 1729117628462322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29403389) 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, 99865 + ... + 100158.

It is an arithmetic number, because the mean of its divisors is an integer number (3800456).

Almost surely, 2^29403381 is an apocalyptic number.

29403381 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

29403381 is a deficient number, since it is larger than the sum of its proper divisors (16202091).

29403381 is a wasteful number, since it uses less digits than its factorization.

29403381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200040 (or 200033 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 29403381 is about 5422.4884508867. The cubic root of 29403381 is about 308.6496274779.

The spelling of 29403381 in words is "twenty-nine million, four hundred three thousand, three hundred eighty-one".