2748920 has 32 divisors (see below), whose sum is σ = 6512400. Its totient is φ = 1041408.

The previous prime is 2748919. The next prime is 2748923. The reversal of 2748920 is 298472.

It is a super-2 number, since 2×2748920² = 15113122332800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2748923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1049 + ... + 2568.

2^2748920 is an apocalyptic number.

2748920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2748920 is an abundant number, since it is smaller than the sum of its proper divisors (3763480).

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

2748920 is a wasteful number, since it uses less digits than its factorization.

2748920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3647 (or 3643 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2748920 is about 1657.9867309481. The cubic root of 2748920 is about 140.0836235102.

The spelling of 2748920 in words is "two million, seven hundred forty-eight thousand, nine hundred twenty".