2540405592 has 96 divisors (see below), whose sum is σ = 7309345680. Its totient is φ = 826122240.

The previous prime is 2540405563. The next prime is 2540405617. The reversal of 2540405592 is 2955040452.

2540405592 is a `hidden beast` number, since 25 + 4 + 0 + 40 + 5 + 592 = 666.

2540405592 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63768 + ... + 95640.

Almost surely, 2^2540405592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2540405592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3654672840).

2540405592 is an abundant number, since it is smaller than the sum of its proper divisors (4768940088).

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

2540405592 is a wasteful number, since it uses less digits than its factorization.

2540405592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31935 (or 31919 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 2540405592 is about 50402.4363696836. The cubic root of 2540405592 is about 1364.4816096993.

The spelling of 2540405592 in words is "two billion, five hundred forty million, four hundred five thousand, five hundred ninety-two".