42349357 has 4 divisors (see below), whose sum is σ = 42424096. Its totient is φ = 42274620.

The previous prime is 42349343. The next prime is 42349361. The reversal of 42349357 is 75394324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42349357 - 2²³ = 33960749 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 (42349387) 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, 36513 + ... + 37654.

It is an arithmetic number, because the mean of its divisors is an integer number (10606024).

Almost surely, 2^42349357 is an apocalyptic number.

It is an amenable number.

42349357 is a deficient number, since it is larger than the sum of its proper divisors (74739).

42349357 is an equidigital number, since it uses as much as digits as its factorization.

42349357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74738.

The product of its digits is 90720, while the sum is 37.

The square root of 42349357 is about 6507.6383581143. The cubic root of 42349357 is about 348.5637935758.

The spelling of 42349357 in words is "forty-two million, three hundred forty-nine thousand, three hundred fifty-seven".