29304021 has 8 divisors (see below), whose sum is σ = 40332544. Its totient is φ = 18905760.

The previous prime is 29304019. The next prime is 29304049. The reversal of 29304021 is 12040392.

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

It is not a de Polignac number, because 29304021 - 2¹ = 29304019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29304091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157456 + ... + 157641.

It is an arithmetic number, because the mean of its divisors is an integer number (5041568).

Almost surely, 2^29304021 is an apocalyptic number.

It is an amenable number.

29304021 is a deficient number, since it is larger than the sum of its proper divisors (11028523).

29304021 is a wasteful number, since it uses less digits than its factorization.

29304021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315131.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 29304021 is about 5413.3188526079. The cubic root of 29304021 is about 308.3015718602.

The spelling of 29304021 in words is "twenty-nine million, three hundred four thousand, twenty-one".