2881490 has 16 divisors (see below), whose sum is σ = 5217048. Its totient is φ = 1145856.

The previous prime is 2881471. The next prime is 2881499. The reversal of 2881490 is 941882.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2468041 + 413449 = 1571^2 + 643^2 .

It is not an unprimeable number, because it can be changed into a prime (2881499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1184 + ... + 2676.

2^2881490 is an apocalyptic number.

2881490 is a deficient number, since it is larger than the sum of its proper divisors (2335558).

2881490 is a wasteful number, since it uses less digits than its factorization.

2881490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 2881490 is about 1697.4952135426. The cubic root of 2881490 is about 142.3002639265.

It can be divided in two parts, 28 and 81490, that added together give a palindrome (81518).

The spelling of 2881490 in words is "two million, eight hundred eighty-one thousand, four hundred ninety".