2540734004 has 6 divisors (see below), whose sum is σ = 4446284514. Its totient is φ = 1270367000.

The previous prime is 2540733967. The next prime is 2540734057. The reversal of 2540734004 is 4004370452.

It can be written as a sum of positive squares in only one way, i.e., 2391405604 + 149328400 = 48902^2 + 12220^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317591747 + ... + 317591754.

It is an arithmetic number, because the mean of its divisors is an integer number (741047419).

Almost surely, 2^2540734004 is an apocalyptic number.

It is an amenable number.

2540734004 is a deficient number, since it is larger than the sum of its proper divisors (1905550510).

2540734004 is a wasteful number, since it uses less digits than its factorization.

2540734004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635183505 (or 635183503 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 2540734004 is about 50405.6941624654. The cubic root of 2540734004 is about 1364.5404051435.

The spelling of 2540734004 in words is "two billion, five hundred forty million, seven hundred thirty-four thousand, four".