29042491 has 4 divisors (see below), whose sum is σ = 30305232. Its totient is φ = 27779752.

The previous prime is 29042483. The next prime is 29042509. The reversal of 29042491 is 19424092.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29042491 - 2³ = 29042483 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29042441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631336 + ... + 631381.

It is an arithmetic number, because the mean of its divisors is an integer number (7576308).

Almost surely, 2^29042491 is an apocalyptic number.

29042491 is a deficient number, since it is larger than the sum of its proper divisors (1262741).

29042491 is a wasteful number, since it uses less digits than its factorization.

29042491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262740.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 29042491 is about 5389.1085533695. The cubic root of 29042491 is about 307.3816620022.

The spelling of 29042491 in words is "twenty-nine million, forty-two thousand, four hundred ninety-one".