2745438 has 16 divisors (see below), whose sum is σ = 5515776. Its totient is φ = 911000.

The previous prime is 2745433. The next prime is 2745451. The reversal of 2745438 is 8345472.

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

It is a junction number, because it is equal to n+sod(n) for n = 2745399 and 2745408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595 + ... + 2417.

It is an arithmetic number, because the mean of its divisors is an integer number (344736).

2^2745438 is an apocalyptic number.

2745438 is an abundant number, since it is smaller than the sum of its proper divisors (2770338).

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

2745438 is a wasteful number, since it uses less digits than its factorization.

2745438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079.

The product of its digits is 26880, while the sum is 33.

The square root of 2745438 is about 1656.9363294949. The cubic root of 2745438 is about 140.0244515115.

The spelling of 2745438 in words is "two million, seven hundred forty-five thousand, four hundred thirty-eight".