2540446392 has 32 divisors (see below), whose sum is σ = 6928490880. Its totient is φ = 769832160.

The previous prime is 2540446379. The next prime is 2540446423. The reversal of 2540446392 is 2936440452.

It is a self number, because there is not a number n which added to its sum of digits gives 2540446392.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4811188 + ... + 4811715.

It is an arithmetic number, because the mean of its divisors is an integer number (216515340).

Almost surely, 2^2540446392 is an apocalyptic number.

2540446392 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2540446392 is an abundant number, since it is smaller than the sum of its proper divisors (4388044488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2540446392 is a wasteful number, since it uses less digits than its factorization.

2540446392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9622923 (or 9622919 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The square root of 2540446392 is about 50402.8411103977. The cubic root of 2540446392 is about 1364.4889143796.

The spelling of 2540446392 in words is "two billion, five hundred forty million, four hundred forty-six thousand, three hundred ninety-two".