42842751 has 16 divisors (see below), whose sum is σ = 66180864. Its totient is φ = 24145344.

The previous prime is 42842729. The next prime is 42842797. The reversal of 42842751 is 15724824.

It is not a de Polignac number, because 42842751 - 2⁶ = 42842687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42842711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12441 + ... + 15506.

It is an arithmetic number, because the mean of its divisors is an integer number (4136304).

Almost surely, 2^42842751 is an apocalyptic number.

42842751 is a deficient number, since it is larger than the sum of its proper divisors (23338113).

42842751 is a wasteful number, since it uses less digits than its factorization.

42842751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28030.

The product of its digits is 17920, while the sum is 33.

The square root of 42842751 is about 6545.4374185382. The cubic root of 42842751 is about 349.9122256085.

The spelling of 42842751 in words is "forty-two million, eight hundred forty-two thousand, seven hundred fifty-one".