6172320 has 192 divisors, whose sum is σ = 24385536. Its totient is φ = 1274880.

The previous prime is 6172291. The next prime is 6172337. The reversal of 6172320 is 232716.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36877 + ... + 37043.

It is an arithmetic number, because the mean of its divisors is an integer number (127008).

Almost surely, 2^6172320 is an apocalyptic number.

6172320 is a gapful number since it is divisible by the number (60) 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 6172320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12192768).

6172320 is an abundant number, since it is smaller than the sum of its proper divisors (18213216).

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

6172320 is a wasteful number, since it uses less digits than its factorization.

6172320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 6172320 is about 2484.4154241994. The cubic root of 6172320 is about 183.4352564572.

Adding to 6172320 its sum of digits (21), we get a triangular number (6172341 = T₃₅₁₃).

The spelling of 6172320 in words is "six million, one hundred seventy-two thousand, three hundred twenty".