42603631 has 8 divisors (see below), whose sum is σ = 49137440. Its totient is φ = 36181728.

The previous prime is 42603629. The next prime is 42603637. The reversal of 42603631 is 13630624.

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

It is a cyclic number.

It is not a de Polignac number, because 42603631 - 2¹ = 42603629 is a prime.

It is a super-2 number, since 2×42603631² = 3630138748768322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42603596 and 42603605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42603637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27156 + ... + 28681.

It is an arithmetic number, because the mean of its divisors is an integer number (6142180).

Almost surely, 2^42603631 is an apocalyptic number.

42603631 is a deficient number, since it is larger than the sum of its proper divisors (6533809).

42603631 is a wasteful number, since it uses less digits than its factorization.

42603631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55953.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 42603631 is about 6527.1457008405. The cubic root of 42603631 is about 349.2600175578.

It can be divided in two parts, 42603 and 631, that added together give a palindrome (43234).

The spelling of 42603631 in words is "forty-two million, six hundred three thousand, six hundred thirty-one".