2901890 has 8 divisors (see below), whose sum is σ = 5223420. Its totient is φ = 1160752.

The previous prime is 2901853. The next prime is 2901893. The reversal of 2901890 is 981092.

It can be written as a sum of positive squares in 2 ways, for example, as 2900209 + 1681 = 1703^2 + 41^2 .

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

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (2901893) 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, 145085 + ... + 145104.

2^2901890 is an apocalyptic number.

2901890 is a deficient number, since it is larger than the sum of its proper divisors (2321530).

2901890 is a wasteful number, since it uses less digits than its factorization.

2901890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290196.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 2901890 is about 1703.4934693153. The cubic root of 2901890 is about 142.6352875447.

The spelling of 2901890 in words is "two million, nine hundred one thousand, eight hundred ninety".