440542 has 16 divisors (see below), whose sum is σ = 705312. Its totient is φ = 205920.

The previous prime is 440537. The next prime is 440543. The reversal of 440542 is 245044.

It is an Ulam number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440543) 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, 2728 + ... + 2884.

It is an arithmetic number, because the mean of its divisors is an integer number (44082).

2⁴⁴⁰⁵⁴² is an apocalyptic number.

440542 is a deficient number, since it is larger than the sum of its proper divisors (264770).

440542 is a wasteful number, since it uses less digits than its factorization.

440542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 440542 is about 663.7333802062. The cubic root of 440542 is about 76.0902667072.

Adding to 440542 its reverse (245044), we get a palindrome (685586).

The spelling of 440542 in words is "four hundred forty thousand, five hundred forty-two".