1616320 has 28 divisors (see below), whose sum is σ = 3849624. Its totient is φ = 646400.

The previous prime is 1616297. The next prime is 1616347. The reversal of 1616320 is 236161.

It is a super-2 number, since 2×1616320² = 5224980684800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2206 + ... + 2845.

2^1616320 is an apocalyptic number.

1616320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1616320 is an abundant number, since it is smaller than the sum of its proper divisors (2233304).

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

1616320 is an equidigital number, since it uses as much as digits as its factorization.

1616320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5068 (or 5058 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1616320 is about 1271.3457436905. The cubic root of 1616320 is about 117.3570314851.

It can be divided in two parts, 1616 and 320, that added together give a square (1936 = 44²).

The spelling of 1616320 in words is "one million, six hundred sixteen thousand, three hundred twenty".