2574491904 has 216 divisors, whose sum is σ = 7816828320. Its totient is φ = 835734528.

The previous prime is 2574491903. The next prime is 2574491921. The reversal of 2574491904 is 4091944752.

2574491904 is a `hidden beast` number, since 2 + 5 + 74 + 491 + 90 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (216).

It is a self number, because there is not a number n which added to its sum of digits gives 2574491904.

It is not an unprimeable number, because it can be changed into a prime (2574491903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24060619 + ... + 24060725.

It is an arithmetic number, because the mean of its divisors is an integer number (36189020).

Almost surely, 2^2574491904 is an apocalyptic number.

2574491904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2574491904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3908414160).

2574491904 is an abundant number, since it is smaller than the sum of its proper divisors (5242336416).

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

2574491904 is an equidigital number, since it uses as much as digits as its factorization.

2574491904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2574491904 is about 50739.4511598224. The cubic root of 2574491904 is about 1370.5572358008.

The spelling of 2574491904 in words is "two billion, five hundred seventy-four million, four hundred ninety-one thousand, nine hundred four".