8424317920 has 48 divisors (see below), whose sum is σ = 19918519488. Its totient is φ = 3367006720.

The previous prime is 8424317903. The next prime is 8424317927. The reversal of 8424317920 is 297134248.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8424317927) 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, 183705 + ... + 224935.

It is an arithmetic number, because the mean of its divisors is an integer number (414969156).

Almost surely, 2^8424317920 is an apocalyptic number.

8424317920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8424317920 is an abundant number, since it is smaller than the sum of its proper divisors (11494201568).

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

8424317920 is a wasteful number, since it uses less digits than its factorization.

8424317920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42523 (or 42515 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 8424317920 is about 91784.0831517099. The cubic root of 8424317920 is about 2034.7524622088.

The spelling of 8424317920 in words is "eight billion, four hundred twenty-four million, three hundred seventeen thousand, nine hundred twenty".