2490943 has 16 divisors (see below), whose sum is σ = 3168256. Its totient is φ = 1905120.

The previous prime is 2490941. The next prime is 2490973. The reversal of 2490943 is 3490942.

2490943 = T₁₈₇ + T₁₈₈ + ... + T₂₇₇.

It is not a de Polignac number, because 2490943 - 2¹ = 2490941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

2490943 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2380 + ... + 3262.

It is an arithmetic number, because the mean of its divisors is an integer number (198016).

2^2490943 is an apocalyptic number.

2490943 is a deficient number, since it is larger than the sum of its proper divisors (677313).

2490943 is a wasteful number, since it uses less digits than its factorization.

2490943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 2490943 is about 1578.2721565053. The cubic root of 2490943 is about 135.5567859733.

Subtracting 2490943 from its reverse (3490942), we obtain a palindrome (999999).

The spelling of 2490943 in words is "two million, four hundred ninety thousand, nine hundred forty-three".