2585374740 has 96 divisors (see below), whose sum is σ = 8662133760. Its totient is φ = 636398208.

The previous prime is 2585374733. The next prime is 2585374747. The reversal of 2585374740 is 474735852.

It is an interprime number because it is at equal distance from previous prime (2585374733) and next prime (2585374747).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2585374747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177124 + ... + 191163.

It is an arithmetic number, because the mean of its divisors is an integer number (90230560).

Almost surely, 2^2585374740 is an apocalyptic number.

2585374740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2585374740 is an abundant number, since it is smaller than the sum of its proper divisors (6076759020).

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

2585374740 is a wasteful number, since it uses less digits than its factorization.

2585374740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368318 (or 368310 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 45.

The square root of 2585374740 is about 50846.5804159926. The cubic root of 2585374740 is about 1372.4857175497.

The spelling of 2585374740 in words is "two billion, five hundred eighty-five million, three hundred seventy-four thousand, seven hundred forty".