622464 has 32 divisors (see below), whose sum is σ = 1654440. Its totient is φ = 207360.

The previous prime is 622423. The next prime is 622477. The reversal of 622464 is 464226.

622464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×622464² = 774922862592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a d-powerful number, because it can be written as 6⁶ + 2⁹ + 4⁴ + 2¹⁹ + 6⁶ + 4⁶ .

It is a congruent number.

It is an unprimeable number.

622464 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427 + ... + 1194.

2⁶²²⁴⁶⁴ is an apocalyptic number.

622464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

622464 is an abundant number, since it is smaller than the sum of its proper divisors (1031976).

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

622464 is a wasteful number, since it uses less digits than its factorization.

622464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638 (or 1626 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 622464 is about 788.9638775001. The cubic root of 622464 is about 85.3830006000.

The spelling of 622464 in words is "six hundred twenty-two thousand, four hundred sixty-four".