29240385 has 8 divisors (see below), whose sum is σ = 46784640. Its totient is φ = 15594864.

The previous prime is 29240377. The next prime is 29240389. The reversal of 29240385 is 58304292.

It is a happy number.

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

It is not a de Polignac number, because 29240385 - 2³ = 29240377 is a prime.

It is a super-2 number, since 2×29240385² = 1710000229896450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29240389) 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, 974665 + ... + 974694.

It is an arithmetic number, because the mean of its divisors is an integer number (5848080).

Almost surely, 2^29240385 is an apocalyptic number.

It is an amenable number.

29240385 is a deficient number, since it is larger than the sum of its proper divisors (17544255).

29240385 is a wasteful number, since it uses less digits than its factorization.

29240385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949367.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 29240385 is about 5407.4379330696. The cubic root of 29240385 is about 308.0782430385.

The spelling of 29240385 in words is "twenty-nine million, two hundred forty thousand, three hundred eighty-five".