42237117 has 12 divisors (see below), whose sum is σ = 65702364. Its totient is φ = 25992000.

The previous prime is 42237109. The next prime is 42237157. The reversal of 42237117 is 71173224.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8259876 + 33977241 = 2874^2 + 5829^2 .

It is not a de Polignac number, because 42237117 - 2³ = 42237109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42237157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180384 + ... + 180617.

It is an arithmetic number, because the mean of its divisors is an integer number (5475197).

Almost surely, 2^42237117 is an apocalyptic number.

It is an amenable number.

42237117 is a deficient number, since it is larger than the sum of its proper divisors (23465247).

42237117 is a wasteful number, since it uses less digits than its factorization.

42237117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361020 (or 361017 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 42237117 is about 6499.0089244438. The cubic root of 42237117 is about 348.2555841421.

It can be divided in two parts, 42237 and 117, that multiplied together give a square (4941729 = 2223²).

The spelling of 42237117 in words is "forty-two million, two hundred thirty-seven thousand, one hundred seventeen".