1622368 has 36 divisors (see below), whose sum is σ = 3519180. Its totient is φ = 735680.

The previous prime is 1622359. The next prime is 1622377. The reversal of 1622368 is 8632261.

It is an interprime number because it is at equal distance from previous prime (1622359) and next prime (1622377).

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

Its product of digits (3456) is a multiple of the sum of its prime divisors (432).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 3663 + ... + 4081.

It is an arithmetic number, because the mean of its divisors is an integer number (97755).

2^1622368 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 1622368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1759590).

1622368 is an abundant number, since it is smaller than the sum of its proper divisors (1896812).

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

1622368 is a wasteful number, since it uses less digits than its factorization.

1622368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 432 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 1622368 is about 1273.7221046995. The cubic root of 1622368 is about 117.5032261073.

The spelling of 1622368 in words is "one million, six hundred twenty-two thousand, three hundred sixty-eight".