2457536240 has 40 divisors (see below), whose sum is σ = 5792056368. Its totient is φ = 969546240.

The previous prime is 2457536173. The next prime is 2457536243. The reversal of 2457536240 is 426357542.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 2457536194 and 2457536203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2457536243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204566 + ... + 216245.

Almost surely, 2^2457536240 is an apocalyptic number.

2457536240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2457536240 is an abundant number, since it is smaller than the sum of its proper divisors (3334520128).

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

2457536240 is a wasteful number, since it uses less digits than its factorization.

2457536240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420897 (or 420891 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 38.

The square root of 2457536240 is about 49573.5437506741. The cubic root of 2457536240 is about 1349.4805939681.

The spelling of 2457536240 in words is "two billion, four hundred fifty-seven million, five hundred thirty-six thousand, two hundred forty".