240737489 has 2 divisors, whose sum is σ = 240737490. Its totient is φ = 240737488.

The previous prime is 240737479. The next prime is 240737491. The reversal of 240737489 is 984737042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238177489 + 2560000 = 15433^2 + 1600^2 .

It is a cyclic number.

It is not a de Polignac number, because 240737489 - 2⁴ = 240737473 is a prime.

It is a super-2 number, since 2×240737489² = 115909077220050242, which contains 22 as substring.

Together with 240737491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (240737479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120368744 + 120368745.

It is an arithmetic number, because the mean of its divisors is an integer number (120368745).

Almost surely, 2^240737489 is an apocalyptic number.

It is an amenable number.

240737489 is a deficient number, since it is larger than the sum of its proper divisors (1).

240737489 is an equidigital number, since it uses as much as digits as its factorization.

240737489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 240737489 is about 15515.7174826045. The cubic root of 240737489 is about 622.0823919075.

The spelling of 240737489 in words is "two hundred forty million, seven hundred thirty-seven thousand, four hundred eighty-nine".