1622464 has 28 divisors (see below), whose sum is σ = 3264408. Its totient is φ = 800000.

The previous prime is 1622449. The next prime is 1622471. The reversal of 1622464 is 4642261.

It is a zygodrome in base 2.

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 3 ways as a sum of consecutive naturals, for example, 6339 + ... + 6589.

It is an arithmetic number, because the mean of its divisors is an integer number (116586).

2^1622464 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 1622464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1632204).

1622464 is an abundant number, since it is smaller than the sum of its proper divisors (1641944).

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

1622464 is a wasteful number, since it uses less digits than its factorization.

1622464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 354 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 1622464 is about 1273.7597889712. The cubic root of 1622464 is about 117.5055437252.

The spelling of 1622464 in words is "one million, six hundred twenty-two thousand, four hundred sixty-four".