464440 has 32 divisors (see below), whose sum is σ = 1108080. Its totient is φ = 174592.

The previous prime is 464437. The next prime is 464447. The reversal of 464440 is 44464.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339 + ... + 1021.

2⁴⁶⁴⁴⁴⁰ is an apocalyptic number.

464440 is a gapful number since it is divisible by the number (40) 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 464440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554040).

464440 is an abundant number, since it is smaller than the sum of its proper divisors (643640).

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

464440 is a wasteful number, since it uses less digits than its factorization.

464440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711 (or 707 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 464440 is about 681.4983492276. The cubic root of 464440 is about 77.4419961407.

The spelling of 464440 in words is "four hundred sixty-four thousand, four hundred forty".