42244787 has 16 divisors (see below), whose sum is σ = 47420352. Its totient is φ = 37376640.

The previous prime is 42244781. The next prime is 42244789. The reversal of 42244787 is 78744224.

It is a cyclic number.

It is not a de Polignac number, because 42244787 - 2¹² = 42240691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42244787.

It is not an unprimeable number, because it can be changed into a prime (42244781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33533 + ... + 34769.

It is an arithmetic number, because the mean of its divisors is an integer number (2963772).

Almost surely, 2^42244787 is an apocalyptic number.

42244787 is a deficient number, since it is larger than the sum of its proper divisors (5175565).

42244787 is a wasteful number, since it uses less digits than its factorization.

42244787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358.

The product of its digits is 100352, while the sum is 38.

The square root of 42244787 is about 6499.5989876299. The cubic root of 42244787 is about 348.2766632217.

The spelling of 42244787 in words is "forty-two million, two hundred forty-four thousand, seven hundred eighty-seven".