440021245132 has 48 divisors (see below), whose sum is σ = 935631793152. Its totient is φ = 176977944000.

The previous prime is 440021245121. The next prime is 440021245151. The reversal of 440021245132 is 231542120044.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 440021245132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6411744 + ... + 6480007.

It is an arithmetic number, because the mean of its divisors is an integer number (19492329024).

Almost surely, 2^440021245132 is an apocalyptic number.

It is an amenable number.

440021245132 is an abundant number, since it is smaller than the sum of its proper divisors (495610548020).

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

440021245132 is a wasteful number, since it uses less digits than its factorization.

440021245132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12891838 (or 12891836 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 440021245132 its reverse (231542120044), we get a palindrome (671563365176).

The spelling of 440021245132 in words is "four hundred forty billion, twenty-one million, two hundred forty-five thousand, one hundred thirty-two".