2440090 has 8 divisors (see below), whose sum is σ = 4392180. Its totient is φ = 976032.

The previous prime is 2440079. The next prime is 2440091. The reversal of 2440090 is 900442.

It can be written as a sum of positive squares in 2 ways, for example, as 2076481 + 363609 = 1441^2 + 603^2 .

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 (2440091) 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, 121995 + ... + 122014.

2^2440090 is an apocalyptic number.

2440090 is a deficient number, since it is larger than the sum of its proper divisors (1952090).

2440090 is a wasteful number, since it uses less digits than its factorization.

2440090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244016.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2440090 is about 1562.0787432137. The cubic root of 2440090 is about 134.6279651665.

The spelling of 2440090 in words is "two million, four hundred forty thousand, ninety".