440521877148 has 24 divisors (see below), whose sum is σ = 1052954731920. Its totient is φ = 143259146880.

The previous prime is 440521877141. The next prime is 440521877167. The reversal of 440521877148 is 841778125044.

It is a super-2 number, since 2×440521877148² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 440521877148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440521877141) 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, 447684343 + ... + 447685326.

It is an arithmetic number, because the mean of its divisors is an integer number (43873113830).

Almost surely, 2^440521877148 is an apocalyptic number.

It is an amenable number.

440521877148 is an abundant number, since it is smaller than the sum of its proper divisors (612432854772).

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

440521877148 is a wasteful number, since it uses less digits than its factorization.

440521877148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895369717 (or 895369715 counting only the distinct ones).

The product of its (nonzero) digits is 2007040, while the sum is 51.

The spelling of 440521877148 in words is "four hundred forty billion, five hundred twenty-one million, eight hundred seventy-seven thousand, one hundred forty-eight".