42449403 has 8 divisors (see below), whose sum is σ = 56647168. Its totient is φ = 28275624.

The previous prime is 42449399. The next prime is 42449411. The reversal of 42449403 is 30494424.

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

It is not a de Polignac number, because 42449403 - 2² = 42449399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42449423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1351 + ... + 9312.

It is an arithmetic number, because the mean of its divisors is an integer number (7080896).

Almost surely, 2^42449403 is an apocalyptic number.

42449403 is a deficient number, since it is larger than the sum of its proper divisors (14197765).

42449403 is a wasteful number, since it uses less digits than its factorization.

42449403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11993.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 42449403 is about 6515.3206367761. The cubic root of 42449403 is about 348.8380597506.

The spelling of 42449403 in words is "forty-two million, four hundred forty-nine thousand, four hundred three".