2440642 has 8 divisors (see below), whose sum is σ = 3672396. Its totient is φ = 1216512.

The previous prime is 2440621. The next prime is 2440643. The reversal of 2440642 is 2460442.

2440642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2105401 + 335241 = 1451^2 + 579^2 .

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 (2440643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1023 + ... + 2434.

2^2440642 is an apocalyptic number.

2440642 is a deficient number, since it is larger than the sum of its proper divisors (1231754).

2440642 is a wasteful number, since it uses less digits than its factorization.

2440642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2440642 is about 1562.2554208579. The cubic root of 2440642 is about 134.6381162994.

The spelling of 2440642 in words is "two million, four hundred forty thousand, six hundred forty-two".