464646 has 64 divisors (see below), whose sum is σ = 1225728. Its totient is φ = 114048.

The previous prime is 464621. The next prime is 464647. The reversal of 464646 is 646464.

464646 = T₁₆₈ + T₁₆₉ + ... + T₁₉₅.

It is an Ulam number.

464646 is an undulating number in base 10.

464646 is a modest number, since divided by 4646 gives 46 as remainder.

It is a Curzon number.

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464647) by changing a digit.

464646 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is an upside-down number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12540 + ... + 12576.

It is an arithmetic number, because the mean of its divisors is an integer number (19152).

2⁴⁶⁴⁶⁴⁶ is an apocalyptic number.

464646 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 464646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (612864).

464646 is an abundant number, since it is smaller than the sum of its proper divisors (761082).

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

464646 is a wasteful number, since it uses less digits than its factorization.

464646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85.

The product of its digits is 13824, while the sum is 30.

The square root of 464646 is about 681.6494700357. The cubic root of 464646 is about 77.4534441162.

It can be divided in two parts, 46464 and 6, that multiplied together give a square (278784 = 528²).

The spelling of 464646 in words is "four hundred sixty-four thousand, six hundred forty-six".