8453248440 has 128 divisors (see below), whose sum is σ = 31212034560. Its totient is φ = 1783540224.

The previous prime is 8453248421. The next prime is 8453248459. The reversal of 8453248440 is 448423548.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8453248421) and next prime (8453248459).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 8453248392 and 8453248401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 376134 + ... + 397973.

It is an arithmetic number, because the mean of its divisors is an integer number (243844020).

Almost surely, 2^8453248440 is an apocalyptic number.

It is an amenable number.

8453248440 is an abundant number, since it is smaller than the sum of its proper divisors (22758786120).

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

8453248440 is a wasteful number, since it uses less digits than its factorization.

8453248440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774141 (or 774137 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 42.

The square root of 8453248440 is about 91941.5490406813. The cubic root of 8453248440 is about 2037.0790279866.

The spelling of 8453248440 in words is "eight billion, four hundred fifty-three million, two hundred forty-eight thousand, four hundred forty".