240347729 has 4 divisors (see below), whose sum is σ = 240619584. Its totient is φ = 240075876.

The previous prime is 240347711. The next prime is 240347749. The reversal of 240347729 is 927743042.

240347729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 240347729 - 2¹⁶ = 240282193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240347692 and 240347701.

It is not an unprimeable number, because it can be changed into a prime (240347749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134597 + ... + 136370.

It is an arithmetic number, because the mean of its divisors is an integer number (60154896).

Almost surely, 2^240347729 is an apocalyptic number.

It is an amenable number.

240347729 is a deficient number, since it is larger than the sum of its proper divisors (271855).

240347729 is an equidigital number, since it uses as much as digits as its factorization.

240347729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271854.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 240347729 is about 15503.1522278535. The cubic root of 240347729 is about 621.7464882599.

The spelling of 240347729 in words is "two hundred forty million, three hundred forty-seven thousand, seven hundred twenty-nine".