440464 has 10 divisors (see below), whose sum is σ = 853430. Its totient is φ = 220224.

The previous prime is 440443. The next prime is 440471. The reversal of 440464 is 464044.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 350464 + 90000 = 592^2 + 300^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13749 + ... + 13780.

It is an arithmetic number, because the mean of its divisors is an integer number (85343).

2⁴⁴⁰⁴⁶⁴ is an apocalyptic number.

It is an amenable number.

440464 is a deficient number, since it is larger than the sum of its proper divisors (412966).

440464 is a wasteful number, since it uses less digits than its factorization.

440464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27537 (or 27531 counting only the distinct ones).

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

The square root of 440464 is about 663.6746190717. The cubic root of 440464 is about 76.0857757309.

The spelling of 440464 in words is "four hundred forty thousand, four hundred sixty-four".