42753909 has 16 divisors (see below), whose sum is σ = 62890560. Its totient is φ = 25618560.

The previous prime is 42753899. The next prime is 42753913. The reversal of 42753909 is 90935724.

It is not a de Polignac number, because 42753909 - 2⁵ = 42753877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42753959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4342 + ... + 10215.

It is an arithmetic number, because the mean of its divisors is an integer number (3930660).

Almost surely, 2^42753909 is an apocalyptic number.

It is an amenable number.

42753909 is a deficient number, since it is larger than the sum of its proper divisors (20136651).

42753909 is a wasteful number, since it uses less digits than its factorization.

42753909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14660.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 42753909 is about 6538.6473371792. The cubic root of 42753909 is about 349.6701899932.

The spelling of 42753909 in words is "forty-two million, seven hundred fifty-three thousand, nine hundred nine".