29042621 has 8 divisors (see below), whose sum is σ = 31003200. Its totient is φ = 27125280.

The previous prime is 29042617. The next prime is 29042627. The reversal of 29042621 is 12624092.

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 29042621 - 2² = 29042617 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 (29042627) 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, 9416 + ... + 12113.

It is an arithmetic number, because the mean of its divisors is an integer number (3875400).

Almost surely, 2^29042621 is an apocalyptic number.

It is an amenable number.

29042621 is a deficient number, since it is larger than the sum of its proper divisors (1960579).

29042621 is a wasteful number, since it uses less digits than its factorization.

29042621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21619.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 29042621 is about 5389.1206147200. The cubic root of 29042621 is about 307.3821206354.

The spelling of 29042621 in words is "twenty-nine million, forty-two thousand, six hundred twenty-one".