240149789 has 6 divisors (see below), whose sum is σ = 263966430. Its totient is φ = 218317880.

The previous prime is 240149773. The next prime is 240149807. The reversal of 240149789 is 987941042.

It can be written as a sum of positive squares in only one way, i.e., 203547289 + 36602500 = 14267^2 + 6050^2 .

It is not a de Polignac number, because 240149789 - 2⁴ = 240149773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240149719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 992234 + ... + 992475.

It is an arithmetic number, because the mean of its divisors is an integer number (43994405).

Almost surely, 2^240149789 is an apocalyptic number.

It is an amenable number.

240149789 is a deficient number, since it is larger than the sum of its proper divisors (23816641).

240149789 is a wasteful number, since it uses less digits than its factorization.

240149789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984731 (or 1984720 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 240149789 is about 15496.7670499366. The cubic root of 240149789 is about 621.5757602062.

The spelling of 240149789 in words is "two hundred forty million, one hundred forty-nine thousand, seven hundred eighty-nine".