2640452173 has 16 divisors (see below), whose sum is σ = 2796134400. Its totient is φ = 2486499120.

The previous prime is 2640452167. The next prime is 2640452179. The reversal of 2640452173 is 3712540462.

It is an interprime number because it is at equal distance from previous prime (2640452167) and next prime (2640452179).

It is a cyclic number.

It is not a de Polignac number, because 2640452173 - 2⁹ = 2640451661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640452179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3572638 + ... + 3573376.

It is an arithmetic number, because the mean of its divisors is an integer number (174758400).

Almost surely, 2^2640452173 is an apocalyptic number.

It is an amenable number.

2640452173 is a deficient number, since it is larger than the sum of its proper divisors (155682227).

2640452173 is a wasteful number, since it uses less digits than its factorization.

2640452173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 2640452173 is about 51385.3303288010. The cubic root of 2640452173 is about 1382.1635482351.

It can be divided in two parts, 2640452 and 173, that added together give a square (2640625 = 1625²).

The spelling of 2640452173 in words is "two billion, six hundred forty million, four hundred fifty-two thousand, one hundred seventy-three".