42309753 has 16 divisors (see below), whose sum is σ = 61793280. Its totient is φ = 25630976.

The previous prime is 42309749. The next prime is 42309769. The reversal of 42309753 is 35790324.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 42309753 - 2² = 42309749 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42309703) 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, 12825 + ... + 15782.

It is an arithmetic number, because the mean of its divisors is an integer number (3862080).

Almost surely, 2^42309753 is an apocalyptic number.

It is an amenable number.

42309753 is a deficient number, since it is larger than the sum of its proper divisors (19483527).

42309753 is a wasteful number, since it uses less digits than its factorization.

42309753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28656.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 42309753 is about 6504.5947606288. The cubic root of 42309753 is about 348.4551038034.

The spelling of 42309753 in words is "forty-two million, three hundred nine thousand, seven hundred fifty-three".