2446440 has 128 divisors (see below), whose sum is σ = 8208000. Its totient is φ = 580608.

The previous prime is 2446439. The next prime is 2446463. The reversal of 2446440 is 446442.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2446440.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66102 + ... + 66138.

It is an arithmetic number, because the mean of its divisors is an integer number (64125).

2^2446440 is an apocalyptic number.

2446440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2446440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4104000).

2446440 is an abundant number, since it is smaller than the sum of its proper divisors (5761560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2446440 is a wasteful number, since it uses less digits than its factorization.

2446440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 2446440 is about 1564.1099705583. The cubic root of 2446440 is about 134.7446476212.

It can be divided in two parts, 24 and 46440, that added together give a palindrome (46464).

The spelling of 2446440 in words is "two million, four hundred forty-six thousand, four hundred forty".