42126361 has 8 divisors (see below), whose sum is σ = 43136064. Its totient is φ = 41124720.

The previous prime is 42126353. The next prime is 42126373. The reversal of 42126361 is 16362124.

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 42126361 - 2³ = 42126353 is a prime.

It is a super-2 number, since 2×42126361² = 3549260582204642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42126341) 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, 9300 + ... + 13066.

It is an arithmetic number, because the mean of its divisors is an integer number (5392008).

Almost surely, 2^42126361 is an apocalyptic number.

It is an amenable number.

42126361 is a deficient number, since it is larger than the sum of its proper divisors (1009703).

42126361 is a wasteful number, since it uses less digits than its factorization.

42126361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031.

The product of its digits is 1728, while the sum is 25.

The square root of 42126361 is about 6490.4823395492. The cubic root of 42126361 is about 347.9509140482.

Adding to 42126361 its reverse (16362124), we get a palindrome (58488485).

The spelling of 42126361 in words is "forty-two million, one hundred twenty-six thousand, three hundred sixty-one".