2540384351 has 4 divisors (see below), whose sum is σ = 2542635600. Its totient is φ = 2538133104.

The previous prime is 2540384317. The next prime is 2540384381. The reversal of 2540384351 is 1534830452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2540384351 - 2¹⁴ = 2540367967 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 (2540384381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1123931 + ... + 1126188.

It is an arithmetic number, because the mean of its divisors is an integer number (635658900).

Almost surely, 2^2540384351 is an apocalyptic number.

2540384351 is a deficient number, since it is larger than the sum of its proper divisors (2251249).

2540384351 is a wasteful number, since it uses less digits than its factorization.

2540384351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251248.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 2540384351 is about 50402.2256552228. The cubic root of 2540384351 is about 1364.4778067587.

The spelling of 2540384351 in words is "two billion, five hundred forty million, three hundred eighty-four thousand, three hundred fifty-one".