29402021 has 8 divisors (see below), whose sum is σ = 32292000. Its totient is φ = 26548240.

The previous prime is 29402011. The next prime is 29402039. The reversal of 29402021 is 12020492.

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 29402021 - 2¹⁰ = 29400997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29401984 and 29402002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29402011) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7331 + ... + 10608.

It is an arithmetic number, because the mean of its divisors is an integer number (4036500).

Almost surely, 2^29402021 is an apocalyptic number.

It is an amenable number.

29402021 is a deficient number, since it is larger than the sum of its proper divisors (2889979).

29402021 is a wasteful number, since it uses less digits than its factorization.

29402021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18099.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 29402021 is about 5422.3630457578. The cubic root of 29402021 is about 308.6448687285.

The spelling of 29402021 in words is "twenty-nine million, four hundred two thousand, twenty-one".