42243501 has 8 divisors (see below), whose sum is σ = 57634720. Its totient is φ = 27507312.

The previous prime is 42243499. The next prime is 42243503. The reversal of 42243501 is 10534224.

It is an interprime number because it is at equal distance from previous prime (42243499) and next prime (42243503).

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

It is not a de Polignac number, because 42243501 - 2¹ = 42243499 is a prime.

It is the 6500-th Hogben number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42243503) by changing a digit.

It is a nontrivial repunit in base 6499.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163606 + ... + 163863.

It is an arithmetic number, because the mean of its divisors is an integer number (7204340).

Almost surely, 2^42243501 is an apocalyptic number.

It is an amenable number.

42243501 is a deficient number, since it is larger than the sum of its proper divisors (15391219).

42243501 is a wasteful number, since it uses less digits than its factorization.

42243501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327515.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 42243501 is about 6499.5000576967. The cubic root of 42243501 is about 348.2731291499.

Adding to 42243501 its reverse (10534224), we get a palindrome (52777725).

The spelling of 42243501 in words is "forty-two million, two hundred forty-three thousand, five hundred one".