440012532 has 12 divisors (see below), whose sum is σ = 1026695936. Its totient is φ = 146670840.

The previous prime is 440012509. The next prime is 440012549. The reversal of 440012532 is 235210044.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×440012532² = 387222056634102048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 440012499 and 440012508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18333844 + ... + 18333867.

Almost surely, 2^440012532 is an apocalyptic number.

It is an amenable number.

440012532 is an abundant number, since it is smaller than the sum of its proper divisors (586683404).

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

440012532 is a wasteful number, since it uses less digits than its factorization.

440012532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36667718 (or 36667716 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 440012532 is about 20976.4756811053. The cubic root of 440012532 is about 760.5977130838.

Adding to 440012532 its reverse (235210044), we get a palindrome (675222576).

The spelling of 440012532 in words is "four hundred forty million, twelve thousand, five hundred thirty-two".