440126452878 has 32 divisors (see below), whose sum is σ = 1006505761536. Its totient is φ = 125687610048.

The previous prime is 440126452877. The next prime is 440126452879. The reversal of 440126452878 is 878254621044.

It is an interprime number because it is at equal distance from previous prime (440126452877) and next prime (440126452879).

It is a super-2 number, since 2×440126452878² (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 440126452878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440126452877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2531751 + ... + 2700002.

It is an arithmetic number, because the mean of its divisors is an integer number (31453305048).

Almost surely, 2^440126452878 is an apocalyptic number.

440126452878 is an abundant number, since it is smaller than the sum of its proper divisors (566379308658).

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

440126452878 is a wasteful number, since it uses less digits than its factorization.

440126452878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5233768.

The product of its (nonzero) digits is 3440640, while the sum is 51.

The spelling of 440126452878 in words is "four hundred forty billion, one hundred twenty-six million, four hundred fifty-two thousand, eight hundred seventy-eight".