42761745 has 48 divisors (see below), whose sum is σ = 81087552. Its totient is φ = 20718720.

The previous prime is 42761731. The next prime is 42761753. The reversal of 42761745 is 54716724.

It is not a de Polignac number, because 42761745 - 2¹¹ = 42759697 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon 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, 38650 + ... + 39740.

It is an arithmetic number, because the mean of its divisors is an integer number (1689324).

Almost surely, 2^42761745 is an apocalyptic number.

42761745 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42761745 is a deficient number, since it is larger than the sum of its proper divisors (38325807).

42761745 is a wasteful number, since it uses less digits than its factorization.

42761745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182 (or 1179 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 42761745 is about 6539.2465162280. The cubic root of 42761745 is about 349.6915513790.

The spelling of 42761745 in words is "forty-two million, seven hundred sixty-one thousand, seven hundred forty-five".