2755668 has 12 divisors (see below), whose sum is σ = 6429920. Its totient is φ = 918552.

The previous prime is 2755663. The next prime is 2755693. The reversal of 2755668 is 8665572.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2755668² = 15187412252448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2755661) 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, 114808 + ... + 114831.

2^2755668 is an apocalyptic number.

It is an amenable number.

2755668 is an abundant number, since it is smaller than the sum of its proper divisors (3674252).

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

2755668 is a wasteful number, since it uses less digits than its factorization.

2755668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229646 (or 229644 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 2755668 is about 1660.0204818014. The cubic root of 2755668 is about 140.1981547753.

The spelling of 2755668 in words is "two million, seven hundred fifty-five thousand, six hundred sixty-eight".