42404293 has 16 divisors (see below), whose sum is σ = 45722880. Its totient is φ = 39247936.

The previous prime is 42404269. The next prime is 42404359. The reversal of 42404293 is 39240424.

It is a cyclic number.

It is not a de Polignac number, because 42404293 - 2⁵ = 42404261 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 (42404093) 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 15 ways as a sum of consecutive naturals, for example, 71946 + ... + 72532.

It is an arithmetic number, because the mean of its divisors is an integer number (2857680).

Almost surely, 2^42404293 is an apocalyptic number.

It is an amenable number.

42404293 is a deficient number, since it is larger than the sum of its proper divisors (3318587).

42404293 is a wasteful number, since it uses less digits than its factorization.

42404293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 42404293 is about 6511.8578762132. The cubic root of 42404293 is about 348.7144485713.

The spelling of 42404293 in words is "forty-two million, four hundred four thousand, two hundred ninety-three".