42349963 has 4 divisors (see below), whose sum is σ = 42982120. Its totient is φ = 41717808.

The previous prime is 42349949. The next prime is 42349973. The reversal of 42349963 is 36994324.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42349963 is a prime.

It is a super-2 number, since 2×42349963² = 3587038732202738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42349933) 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, 315978 + ... + 316111.

It is an arithmetic number, because the mean of its divisors is an integer number (10745530).

Almost surely, 2^42349963 is an apocalyptic number.

42349963 is a deficient number, since it is larger than the sum of its proper divisors (632157).

42349963 is an equidigital number, since it uses as much as digits as its factorization.

42349963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632156.

The product of its digits is 139968, while the sum is 40.

The square root of 42349963 is about 6507.6849186174. The cubic root of 42349963 is about 348.5654561642.

The spelling of 42349963 in words is "forty-two million, three hundred forty-nine thousand, nine hundred sixty-three".