240054439 has 2 divisors, whose sum is σ = 240054440. Its totient is φ = 240054438.

The previous prime is 240054407. The next prime is 240054443. The reversal of 240054439 is 934450042.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240054439 - 2⁵ = 240054407 is a prime.

It is a super-2 number, since 2×240054439² = 115252267367209442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 240054439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240054499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120027219 + 120027220.

It is an arithmetic number, because the mean of its divisors is an integer number (120027220).

Almost surely, 2^240054439 is an apocalyptic number.

240054439 is a deficient number, since it is larger than the sum of its proper divisors (1).

240054439 is an equidigital number, since it uses as much as digits as its factorization.

240054439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 240054439 is about 15493.6902963755. The cubic root of 240054439 is about 621.4934850358.

The spelling of 240054439 in words is "two hundred forty million, fifty-four thousand, four hundred thirty-nine".