6281920 has 56 divisors (see below), whose sum is σ = 15233904. Its totient is φ = 2466816.

The previous prime is 6281917. The next prime is 6281923. The reversal of 6281920 is 291826.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6281917) and next prime (6281923).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6281923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21294 + ... + 21586.

It is an arithmetic number, because the mean of its divisors is an integer number (272034).

Almost surely, 2^6281920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6281920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7616952).

6281920 is an abundant number, since it is smaller than the sum of its proper divisors (8951984).

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

6281920 is a wasteful number, since it uses less digits than its factorization.

6281920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 6281920 is about 2506.3758696572. The cubic root of 6281920 is about 184.5146273560.

The spelling of 6281920 in words is "six million, two hundred eighty-one thousand, nine hundred twenty".