2757428 has 6 divisors (see below), whose sum is σ = 4825506. Its totient is φ = 1378712.

The previous prime is 2757397. The next prime is 2757437. The reversal of 2757428 is 8247572.

It can be written as a sum of positive squares in only one way, i.e., 2748964 + 8464 = 1658^2 + 92^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344675 + ... + 344682.

It is an arithmetic number, because the mean of its divisors is an integer number (804251).

2^2757428 is an apocalyptic number.

It is an amenable number.

2757428 is a deficient number, since it is larger than the sum of its proper divisors (2068078).

2757428 is a wasteful number, since it uses less digits than its factorization.

2757428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689361 (or 689359 counting only the distinct ones).

The product of its digits is 31360, while the sum is 35.

The square root of 2757428 is about 1660.5505111258. The cubic root of 2757428 is about 140.2279958446.

The spelling of 2757428 in words is "two million, seven hundred fifty-seven thousand, four hundred twenty-eight".