4248264640 has 56 divisors (see below), whose sum is σ = 10711263312. Its totient is φ = 1599344640.

The previous prime is 4248264637. The next prime is 4248264641. The reversal of 4248264640 is 464628424.

It is a happy number.

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 = 4248264593 and 4248264602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4248264641) 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, 385026 + ... + 395905.

Almost surely, 2^4248264640 is an apocalyptic number.

4248264640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4248264640 is an abundant number, since it is smaller than the sum of its proper divisors (6462998672).

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

4248264640 is a wasteful number, since it uses less digits than its factorization.

4248264640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780965 (or 780955 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 40.

The square root of 4248264640 is about 65178.7130894742. The cubic root of 4248264640 is about 1619.5854042432.

The spelling of 4248264640 in words is "four billion, two hundred forty-eight million, two hundred sixty-four thousand, six hundred forty".