29293381 has 8 divisors (see below), whose sum is σ = 32399864. Its totient is φ = 26308800.

The previous prime is 29293373. The next prime is 29293387. The reversal of 29293381 is 18339292.

It can be written as a sum of positive squares in 4 ways, for example, as 36100 + 29257281 = 190^2 + 5409^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29293381 - 2³ = 29293373 is a prime.

It is a super-2 number, since 2×29293381² = 1716204340822322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 29293381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29293387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29970 + ... + 30931.

It is an arithmetic number, because the mean of its divisors is an integer number (4049983).

Almost surely, 2^29293381 is an apocalyptic number.

It is an amenable number.

29293381 is a deficient number, since it is larger than the sum of its proper divisors (3106483).

29293381 is a wasteful number, since it uses less digits than its factorization.

29293381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60951.

The product of its digits is 23328, while the sum is 37.

The square root of 29293381 is about 5412.3360021344. The cubic root of 29293381 is about 308.2642535934.

The spelling of 29293381 in words is "twenty-nine million, two hundred ninety-three thousand, three hundred eighty-one".