2055490 has 8 divisors (see below), whose sum is σ = 3699900. Its totient is φ = 822192.

The previous prime is 2055481. The next prime is 2055497. The reversal of 2055490 is 945502.

It can be written as a sum of positive squares in 2 ways, for example, as 1814409 + 241081 = 1347^2 + 491^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2055497) 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, 102765 + ... + 102784.

2^2055490 is an apocalyptic number.

2055490 is a deficient number, since it is larger than the sum of its proper divisors (1644410).

2055490 is a wasteful number, since it uses less digits than its factorization.

2055490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205556.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2055490 is about 1433.6980156225. The cubic root of 2055490 is about 127.1467087525.

The spelling of 2055490 in words is "two million, fifty-five thousand, four hundred ninety".