1622268 has 36 divisors (see below), whose sum is σ = 4255160. Its totient is φ = 540432.

The previous prime is 1622263. The next prime is 1622273. The reversal of 1622268 is 8622261.

It is an interprime number because it is at equal distance from previous prime (1622263) and next prime (1622273).

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138 + ... + 1806.

2^1622268 is an apocalyptic number.

1622268 is a gapful number since it is divisible by the number (18) 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 1622268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2127580).

1622268 is an abundant number, since it is smaller than the sum of its proper divisors (2632892).

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

1622268 is a wasteful number, since it uses less digits than its factorization.

1622268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688 (or 1674 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 1622268 is about 1273.6828490641. The cubic root of 1622268 is about 117.5008118248.

It can be divided in two parts, 16222 and 68, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 1622268 in words is "one million, six hundred twenty-two thousand, two hundred sixty-eight".