2402446640 has 80 divisors (see below), whose sum is σ = 6414232320. Its totient is φ = 827631360.

The previous prime is 2402446639. The next prime is 2402446661. The reversal of 2402446640 is 466442042.

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 = 2402446597 and 2402446606.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55124 + ... + 88563.

It is an arithmetic number, because the mean of its divisors is an integer number (80177904).

Almost surely, 2^2402446640 is an apocalyptic number.

2402446640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2402446640 is an abundant number, since it is smaller than the sum of its proper divisors (4011785680).

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

2402446640 is a wasteful number, since it uses less digits than its factorization.

2402446640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143730 (or 143724 counting only the distinct ones).

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

The square root of 2402446640 is about 49014.7594097941. The cubic root of 2402446640 is about 1339.3207071600.

Adding to 2402446640 its reverse (466442042), we get a palindrome (2868888682).

The spelling of 2402446640 in words is "two billion, four hundred two million, four hundred forty-six thousand, six hundred forty".