2993890 has 8 divisors (see below), whose sum is σ = 5389020. Its totient is φ = 1197552.

The previous prime is 2993869. The next prime is 2993891. The reversal of 2993890 is 983992.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2893401 + 100489 = 1701^2 + 317^2 .

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 (2993891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149685 + ... + 149704.

2^2993890 is an apocalyptic number.

2993890 is a deficient number, since it is larger than the sum of its proper divisors (2395130).

2993890 is a wasteful number, since it uses less digits than its factorization.

2993890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299396.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 2993890 is about 1730.2861035101. The cubic root of 2993890 is about 144.1269777627.

It can be divided in two parts, 2993 and 890, that added together give a palindrome (3883).

The spelling of 2993890 in words is "two million, nine hundred ninety-three thousand, eight hundred ninety".