2450982640 has 20 divisors (see below), whose sum is σ = 5698534824. Its totient is φ = 980393024.

The previous prime is 2450982631. The next prime is 2450982643. The reversal of 2450982640 is 462890542.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 2450982593 and 2450982602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2450982643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15318562 + ... + 15318721.

Almost surely, 2^2450982640 is an apocalyptic number.

2450982640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2450982640 is an abundant number, since it is smaller than the sum of its proper divisors (3247552184).

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

2450982640 is a wasteful number, since it uses less digits than its factorization.

2450982640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30637296 (or 30637290 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 2450982640 is about 49507.3998509314. The cubic root of 2450982640 is about 1348.2799566465.

The spelling of 2450982640 in words is "two billion, four hundred fifty million, nine hundred eighty-two thousand, six hundred forty".