6514448240 has 40 divisors (see below), whose sum is σ = 15804622368. Its totient is φ = 2492483840.

The previous prime is 6514448233. The next prime is 6514448249. The reversal of 6514448240 is 428444156.

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 = 6514448194 and 6514448203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6514448249) 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, 1768391 + ... + 1772070.

Almost surely, 2^6514448240 is an apocalyptic number.

It is an amenable number.

6514448240 is an abundant number, since it is smaller than the sum of its proper divisors (9290174128).

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

6514448240 is a wasteful number, since it uses less digits than its factorization.

6514448240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3540497 (or 3540491 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 38.

The square root of 6514448240 is about 80712.1319257520. The cubic root of 6514448240 is about 1867.6373299200.

The spelling of 6514448240 in words is "six billion, five hundred fourteen million, four hundred forty-eight thousand, two hundred forty".