42096729 has 16 divisors (see below), whose sum is σ = 58150400. Its totient is φ = 27060480.

The previous prime is 42096721. The next prime is 42096737. The reversal of 42096729 is 92769024.

It is an interprime number because it is at equal distance from previous prime (42096721) and next prime (42096737).

It is not a de Polignac number, because 42096729 - 2³ = 42096721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42096721) 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, 31809 + ... + 33105.

It is an arithmetic number, because the mean of its divisors is an integer number (3634400).

Almost surely, 2^42096729 is an apocalyptic number.

It is an amenable number.

42096729 is a deficient number, since it is larger than the sum of its proper divisors (16053671).

42096729 is a wasteful number, since it uses less digits than its factorization.

42096729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 42096729 is about 6488.1992108751. The cubic root of 42096729 is about 347.8693111462.

The spelling of 42096729 in words is "forty-two million, ninety-six thousand, seven hundred twenty-nine".