2755990 has 8 divisors (see below), whose sum is σ = 4960800. Its totient is φ = 1102392.

The previous prime is 2755981. The next prime is 2755997. The reversal of 2755990 is 995572.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2755997) 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, 137790 + ... + 137809.

It is an arithmetic number, because the mean of its divisors is an integer number (620100).

2^2755990 is an apocalyptic number.

2755990 is a deficient number, since it is larger than the sum of its proper divisors (2204810).

2755990 is a wasteful number, since it uses less digits than its factorization.

2755990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275606.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 2755990 is about 1660.1174657234. The cubic root of 2755990 is about 140.2036152840.

The spelling of 2755990 in words is "two million, seven hundred fifty-five thousand, nine hundred ninety".