440742 has 32 divisors (see below), whose sum is σ = 972000. Its totient is φ = 132608.

The previous prime is 440731. The next prime is 440753. The reversal of 440742 is 247044.

It is an interprime number because it is at equal distance from previous prime (440731) and next prime (440753).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2884 + ... + 3032.

It is an arithmetic number, because the mean of its divisors is an integer number (30375).

2⁴⁴⁰⁷⁴² is an apocalyptic number.

440742 is an abundant number, since it is smaller than the sum of its proper divisors (531258).

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

440742 is a wasteful number, since it uses less digits than its factorization.

440742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 440742 is about 663.8840260166. The cubic root of 440742 is about 76.1017796095.

Adding to 440742 its reverse (247044), we get a palindrome (687786).

The spelling of 440742 in words is "four hundred forty thousand, seven hundred forty-two", and thus it is an iban number.