240051439 has 2 divisors, whose sum is σ = 240051440. Its totient is φ = 240051438.

The previous prime is 240051421. The next prime is 240051443. The reversal of 240051439 is 934150042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240051439 - 2¹¹ = 240049391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240051139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120025719 + 120025720.

It is an arithmetic number, because the mean of its divisors is an integer number (120025720).

Almost surely, 2^240051439 is an apocalyptic number.

240051439 is a deficient number, since it is larger than the sum of its proper divisors (1).

240051439 is an equidigital number, since it uses as much as digits as its factorization.

240051439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 240051439 is about 15493.5934824688. The cubic root of 240051439 is about 621.4908960561.

The spelling of 240051439 in words is "two hundred forty million, fifty-one thousand, four hundred thirty-nine".