2751940 has 12 divisors (see below), whose sum is σ = 5779116. Its totient is φ = 1100768.

The previous prime is 2751907. The next prime is 2751953. The reversal of 2751940 is 491572.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1149184 + 1602756 = 1072^2 + 1266^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2751899 and 2751908.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 68779 + ... + 68818.

It is an arithmetic number, because the mean of its divisors is an integer number (481593).

2^2751940 is an apocalyptic number.

2751940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2751940 is an abundant number, since it is smaller than the sum of its proper divisors (3027176).

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

2751940 is a wasteful number, since it uses less digits than its factorization.

2751940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137606 (or 137604 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 2751940 is about 1658.8972240618. The cubic root of 2751940 is about 140.1349039784.

The spelling of 2751940 in words is "two million, seven hundred fifty-one thousand, nine hundred forty".