2756428 has 6 divisors (see below), whose sum is σ = 4823756. Its totient is φ = 1378212.

The previous prime is 2756423. The next prime is 2756437. The reversal of 2756428 is 8246572.

It is a d-powerful number, because it can be written as 2¹⁸ + 7⁴ + 5⁸ + 6 + 4 + 2²¹ + 8⁴ .

It is a junction number, because it is equal to n+sod(n) for n = 2756393 and 2756402.

It is not an unprimeable number, because it can be changed into a prime (2756423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344550 + ... + 344557.

2^2756428 is an apocalyptic number.

It is an amenable number.

2756428 is a deficient number, since it is larger than the sum of its proper divisors (2067328).

2756428 is a wasteful number, since it uses less digits than its factorization.

2756428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689111 (or 689109 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 2756428 is about 1660.2493788585. The cubic root of 2756428 is about 140.2110422499.

The spelling of 2756428 in words is "two million, seven hundred fifty-six thousand, four hundred twenty-eight".