42261603 has 16 divisors (see below), whose sum is σ = 59550720. Its totient is φ = 26604864.

The previous prime is 42261599. The next prime is 42261607. The reversal of 42261603 is 30616224.

It is an interprime number because it is at equal distance from previous prime (42261599) and next prime (42261607).

It is not a de Polignac number, because 42261603 - 2² = 42261599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42261607) 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, 1575 + ... + 9327.

It is an arithmetic number, because the mean of its divisors is an integer number (3721920).

Almost surely, 2^42261603 is an apocalyptic number.

42261603 is a deficient number, since it is larger than the sum of its proper divisors (17289117).

42261603 is a wasteful number, since it uses less digits than its factorization.

42261603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7858.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 42261603 is about 6500.8924771911. The cubic root of 42261603 is about 348.3228688711.

Adding to 42261603 its reverse (30616224), we get a palindrome (72877827).

The spelling of 42261603 in words is "forty-two million, two hundred sixty-one thousand, six hundred three".