2750390 has 8 divisors (see below), whose sum is σ = 4950720. Its totient is φ = 1100152.

The previous prime is 2750387. The next prime is 2750399. The reversal of 2750390 is 930572.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2750399) 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, 137510 + ... + 137529.

It is an arithmetic number, because the mean of its divisors is an integer number (618840).

2^2750390 is an apocalyptic number.

2750390 is a deficient number, since it is larger than the sum of its proper divisors (2200330).

2750390 is a wasteful number, since it uses less digits than its factorization.

2750390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275046.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 2750390 is about 1658.4299804333. The cubic root of 2750390 is about 140.1085892218.

The spelling of 2750390 in words is "two million, seven hundred fifty thousand, three hundred ninety".