42751766 has 8 divisors (see below), whose sum is σ = 65691864. Its totient is φ = 20854480.

The previous prime is 42751763. The next prime is 42751769. The reversal of 42751766 is 66715724.

It is an interprime number because it is at equal distance from previous prime (42751763) and next prime (42751769).

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

It is a super-3 number, since 3×42751766³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42751763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260600 + ... + 260763.

It is an arithmetic number, because the mean of its divisors is an integer number (8211483).

Almost surely, 2^42751766 is an apocalyptic number.

42751766 is a deficient number, since it is larger than the sum of its proper divisors (22940098).

42751766 is a wasteful number, since it uses less digits than its factorization.

42751766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521406.

The product of its digits is 70560, while the sum is 38.

The square root of 42751766 is about 6538.4834633117. The cubic root of 42751766 is about 349.6643475977.

The spelling of 42751766 in words is "forty-two million, seven hundred fifty-one thousand, seven hundred sixty-six".