42743775 has 48 divisors (see below), whose sum is σ = 74995200. Its totient is φ = 21436800.

The previous prime is 42743759. The next prime is 42743783. The reversal of 42743775 is 57734724.

It is not a de Polignac number, because 42743775 - 2⁴ = 42743759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122301 + ... + 122649.

It is an arithmetic number, because the mean of its divisors is an integer number (1562400).

Almost surely, 2^42743775 is an apocalyptic number.

42743775 is a deficient number, since it is larger than the sum of its proper divisors (32251425).

42743775 is a wasteful number, since it uses less digits than its factorization.

42743775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 451 counting only the distinct ones).

The product of its digits is 164640, while the sum is 39.

The square root of 42743775 is about 6537.8723603325. The cubic root of 42743775 is about 349.6425602567.

The spelling of 42743775 in words is "forty-two million, seven hundred forty-three thousand, seven hundred seventy-five".