42736845 has 8 divisors (see below), whose sum is σ = 68378976. Its totient is φ = 22792976.

The previous prime is 42736843. The next prime is 42736849. The reversal of 42736845 is 54863724.

It is a happy number.

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 42736845 - 2¹ = 42736843 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42736843) 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, 1424547 + ... + 1424576.

It is an arithmetic number, because the mean of its divisors is an integer number (8547372).

Almost surely, 2^42736845 is an apocalyptic number.

It is an amenable number.

42736845 is a deficient number, since it is larger than the sum of its proper divisors (25642131).

42736845 is a wasteful number, since it uses less digits than its factorization.

42736845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849131.

The product of its digits is 161280, while the sum is 39.

The square root of 42736845 is about 6537.3423499156. The cubic root of 42736845 is about 349.6236635175.

The spelling of 42736845 in words is "forty-two million, seven hundred thirty-six thousand, eight hundred forty-five".