42738851 has 8 divisors (see below), whose sum is σ = 43890000. Its totient is φ = 41592960.

The previous prime is 42738827. The next prime is 42738877. The reversal of 42738851 is 15883724.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42738851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42738821) 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, 19415 + ... + 21503.

It is an arithmetic number, because the mean of its divisors is an integer number (5486250).

Almost surely, 2^42738851 is an apocalyptic number.

42738851 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

42738851 is a deficient number, since it is larger than the sum of its proper divisors (1151149).

42738851 is a wasteful number, since it uses less digits than its factorization.

42738851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629.

The product of its digits is 53760, while the sum is 38.

The square root of 42738851 is about 6537.4957743772. The cubic root of 42738851 is about 349.6291336928.

The spelling of 42738851 in words is "forty-two million, seven hundred thirty-eight thousand, eight hundred fifty-one".