42746455 has 4 divisors (see below), whose sum is σ = 51295752. Its totient is φ = 34197160.

The previous prime is 42746441. The next prime is 42746467. The reversal of 42746455 is 55464724.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42746455 - 2⁵ = 42746423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4274641 + ... + 4274650.

It is an arithmetic number, because the mean of its divisors is an integer number (12823938).

Almost surely, 2^42746455 is an apocalyptic number.

42746455 is a deficient number, since it is larger than the sum of its proper divisors (8549297).

42746455 is an equidigital number, since it uses as much as digits as its factorization.

42746455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8549296.

The product of its digits is 134400, while the sum is 37.

The square root of 42746455 is about 6538.0773167652. The cubic root of 42746455 is about 349.6498675389.

The spelling of 42746455 in words is "forty-two million, seven hundred forty-six thousand, four hundred fifty-five".