3817223520 has 576 divisors, whose sum is σ = 14837727744. Its totient is φ = 813711360.

The previous prime is 3817223489. The next prime is 3817223521. The reversal of 3817223520 is 253227183.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3817223521) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 88772619 + ... + 88772661.

It is an arithmetic number, because the mean of its divisors is an integer number (25759944).

Almost surely, 2^3817223520 is an apocalyptic number.

3817223520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3817223520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7418863872).

3817223520 is an abundant number, since it is smaller than the sum of its proper divisors (11020504224).

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

3817223520 is a wasteful number, since it uses less digits than its factorization.

3817223520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 3817223520 is about 61783.6832828863. The cubic root of 3817223520 is about 1562.8448418189.

The spelling of 3817223520 in words is "three billion, eight hundred seventeen million, two hundred twenty-three thousand, five hundred twenty".