2605023774 has 64 divisors (see below), whose sum is σ = 5999328000. Its totient is φ = 836892000.

The previous prime is 2605023767. The next prime is 2605023791. The reversal of 2605023774 is 4773205062.

It is a happy number.

It is a super-2 number, since 2×2605023774² = 13572297726210406152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1156149 + ... + 1158399.

It is an arithmetic number, because the mean of its divisors is an integer number (93739500).

Almost surely, 2^2605023774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2605023774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2999664000).

2605023774 is an abundant number, since it is smaller than the sum of its proper divisors (3394304226).

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

2605023774 is a wasteful number, since it uses less digits than its factorization.

2605023774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030 (or 3024 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 2605023774 is about 51039.4335195837. The cubic root of 2605023774 is about 1375.9539428061.

The spelling of 2605023774 in words is "two billion, six hundred five million, twenty-three thousand, seven hundred seventy-four".