2540465774 has 32 divisors (see below), whose sum is σ = 4793078016. Its totient is φ = 981025920.

The previous prime is 2540465747. The next prime is 2540465789. The reversal of 2540465774 is 4775640452.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55592 + ... + 90395.

It is an arithmetic number, because the mean of its divisors is an integer number (149783688).

Almost surely, 2^2540465774 is an apocalyptic number.

2540465774 is a deficient number, since it is larger than the sum of its proper divisors (2252612242).

2540465774 is a wasteful number, since it uses less digits than its factorization.

2540465774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146120.

The product of its (nonzero) digits is 940800, while the sum is 44.

The square root of 2540465774 is about 50403.0333809385. The cubic root of 2540465774 is about 1364.4923844334.

The spelling of 2540465774 in words is "two billion, five hundred forty million, four hundred sixty-five thousand, seven hundred seventy-four".