2745858 has 8 divisors (see below), whose sum is σ = 5491728. Its totient is φ = 915284.

The previous prime is 2745839. The next prime is 2745859. The reversal of 2745858 is 8585472.

It is a sphenic number, since it is the product of 3 distinct primes.

2745858 is an admirable number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2745859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228816 + ... + 228827.

It is an arithmetic number, because the mean of its divisors is an integer number (686466).

2^2745858 is an apocalyptic number.

2745858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2745858 is a wasteful number, since it uses less digits than its factorization.

2745858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457648.

The product of its digits is 89600, while the sum is 39.

The square root of 2745858 is about 1657.0630645814. The cubic root of 2745858 is about 140.0315915102.

The spelling of 2745858 in words is "two million, seven hundred forty-five thousand, eight hundred fifty-eight".