240880069 has 4 divisors (see below), whose sum is σ = 240911500. Its totient is φ = 240848640.

The previous prime is 240880039. The next prime is 240880097. The reversal of 240880069 is 960088042.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 157377025 + 83503044 = 12545^2 + 9138^2 .

It is a cyclic number.

It is not a de Polignac number, because 240880069 - 2⁵ = 240880037 is a prime.

It is a super-2 number, since 2×240880069² = 116046415282889522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240880039) 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, 4159 + ... + 22339.

It is an arithmetic number, because the mean of its divisors is an integer number (60227875).

Almost surely, 2^240880069 is an apocalyptic number.

It is an amenable number.

240880069 is a deficient number, since it is larger than the sum of its proper divisors (31431).

240880069 is a wasteful number, since it uses less digits than its factorization.

240880069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31430.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 240880069 is about 15520.3114981627. The cubic root of 240880069 is about 622.2051798774.

The spelling of 240880069 in words is "two hundred forty million, eight hundred eighty thousand, sixty-nine".