1612320 has 48 divisors (see below), whose sum is σ = 5080320. Its totient is φ = 429824.

The previous prime is 1612319. The next prime is 1612327. The reversal of 1612320 is 232161.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1612320.

It is not an unprimeable number, because it can be changed into a prime (1612327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1200 + ... + 2159.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

2^1612320 is an apocalyptic number.

1612320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1612320 is an abundant number, since it is smaller than the sum of its proper divisors (3468000).

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

1612320 is a wasteful number, since it uses less digits than its factorization.

1612320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377 (or 3369 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1612320 is about 1269.7716330112. The cubic root of 1612320 is about 117.2601414511.

Adding to 1612320 its reverse (232161), we get a palindrome (1844481).

The spelling of 1612320 in words is "one million, six hundred twelve thousand, three hundred twenty".