240764749 has 2 divisors, whose sum is σ = 240764750. Its totient is φ = 240764748.

The previous prime is 240764747. The next prime is 240764773. The reversal of 240764749 is 947467042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151462249 + 89302500 = 12307^2 + 9450^2 .

It is a cyclic number.

It is not a de Polignac number, because 240764749 - 2¹ = 240764747 is a prime.

It is a super-2 number, since 2×240764749² = 115935328722066002, which contains 22 as substring.

Together with 240764747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240764747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120382374 + 120382375.

It is an arithmetic number, because the mean of its divisors is an integer number (120382375).

Almost surely, 2^240764749 is an apocalyptic number.

It is an amenable number.

240764749 is a deficient number, since it is larger than the sum of its proper divisors (1).

240764749 is an equidigital number, since it uses as much as digits as its factorization.

240764749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 240764749 is about 15516.5959217865. The cubic root of 240764749 is about 622.1058715991.

The spelling of 240764749 in words is "two hundred forty million, seven hundred sixty-four thousand, seven hundred forty-nine".