2440646 has 8 divisors (see below), whose sum is σ = 3942624. Its totient is φ = 1126440.

The previous prime is 2440643. The next prime is 2440649. The reversal of 2440646 is 6460442.

It is an interprime number because it is at equal distance from previous prime (2440643) and next prime (2440649).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 93871 = 2440646 / (2 + 4 + 4 + 0 + 6 + 4 + 6).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440643) 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, 46910 + ... + 46961.

It is an arithmetic number, because the mean of its divisors is an integer number (492828).

2^2440646 is an apocalyptic number.

2440646 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2440646 is a deficient number, since it is larger than the sum of its proper divisors (1501978).

2440646 is a wasteful number, since it uses less digits than its factorization.

2440646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93886.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 2440646 is about 1562.2567010578. The cubic root of 2440646 is about 134.6381898527.

The spelling of 2440646 in words is "two million, four hundred forty thousand, six hundred forty-six".