2440254391 has 8 divisors (see below), whose sum is σ = 2559688704. Its totient is φ = 2321931480.

The previous prime is 2440254389. The next prime is 2440254449. The reversal of 2440254391 is 1934520442.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2440254391 - 2¹ = 2440254389 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 (2440254331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273351 + ... + 282136.

It is an arithmetic number, because the mean of its divisors is an integer number (319961088).

Almost surely, 2^2440254391 is an apocalyptic number.

2440254391 is a deficient number, since it is larger than the sum of its proper divisors (119434313).

2440254391 is a wasteful number, since it uses less digits than its factorization.

2440254391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555701.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 2440254391 is about 49398.9310714311. The cubic root of 2440254391 is about 1346.3098843321.

The spelling of 2440254391 in words is "two billion, four hundred forty million, two hundred fifty-four thousand, three hundred ninety-one".