6403848240 has 40 divisors (see below), whose sum is σ = 19851930288. Its totient is φ = 1707692800.

The previous prime is 6403848233. The next prime is 6403848247. The reversal of 6403848240 is 428483046.

It is an interprime number because it is at equal distance from previous prime (6403848233) and next prime (6403848247).

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

It is not an unprimeable number, because it can be changed into a prime (6403848247) 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, 13341111 + ... + 13341590.

Almost surely, 2^6403848240 is an apocalyptic number.

6403848240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6403848240 is an abundant number, since it is smaller than the sum of its proper divisors (13448082048).

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

6403848240 is a wasteful number, since it uses less digits than its factorization.

6403848240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26682717 (or 26682711 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 39.

The square root of 6403848240 is about 80024.0478856200. The cubic root of 6403848240 is about 1857.0075827983.

The spelling of 6403848240 in words is "six billion, four hundred three million, eight hundred forty-eight thousand, two hundred forty".