2540509704 has 64 divisors (see below), whose sum is σ = 7068744000. Its totient is φ = 845424000.

The previous prime is 2540509693. The next prime is 2540509723. The reversal of 2540509704 is 4079050452.

It is a super-2 number, since 2×2540509704² = 12908379112236335232, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124204 + ... + 143204.

It is an arithmetic number, because the mean of its divisors is an integer number (110449125).

Almost surely, 2^2540509704 is an apocalyptic number.

2540509704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2540509704 is an abundant number, since it is smaller than the sum of its proper divisors (4528234296).

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

2540509704 is a wasteful number, since it uses less digits than its factorization.

2540509704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19635 (or 19625 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 2540509704 is about 50403.4691663183. The cubic root of 2540509704 is about 1364.5002493697.

The spelling of 2540509704 in words is "two billion, five hundred forty million, five hundred nine thousand, seven hundred four".