2446402640 has 80 divisors (see below), whose sum is σ = 6337094400. Its totient is φ = 870658560.

The previous prime is 2446402639. The next prime is 2446402661. The reversal of 2446402640 is 462046442.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 2446402597 and 2446402606.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11786 + ... + 70934.

It is an arithmetic number, because the mean of its divisors is an integer number (79213680).

Almost surely, 2^2446402640 is an apocalyptic number.

2446402640 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 2446402640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3168547200).

2446402640 is an abundant number, since it is smaller than the sum of its proper divisors (3890691760).

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

2446402640 is a wasteful number, since it uses less digits than its factorization.

2446402640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59220 (or 59214 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

The square root of 2446402640 is about 49461.1225105132. The cubic root of 2446402640 is about 1347.4396171496.

The spelling of 2446402640 in words is "two billion, four hundred forty-six million, four hundred two thousand, six hundred forty".