42393429 has 16 divisors (see below), whose sum is σ = 67636800. Its totient is φ = 26088048.

The previous prime is 42393409. The next prime is 42393433. The reversal of 42393429 is 92439324.

It is not a de Polignac number, because 42393429 - 2⁵ = 42393397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42393393 and 42393402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42393409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60039 + ... + 60740.

It is an arithmetic number, because the mean of its divisors is an integer number (4227300).

Almost surely, 2^42393429 is an apocalyptic number.

It is an amenable number.

42393429 is a deficient number, since it is larger than the sum of its proper divisors (25243371).

42393429 is a wasteful number, since it uses less digits than its factorization.

42393429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120801 (or 120795 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 42393429 is about 6511.0236522378. The cubic root of 42393429 is about 348.6846657586.

The spelling of 42393429 in words is "forty-two million, three hundred ninety-three thousand, four hundred twenty-nine".