440243352534456 has 64 divisors (see below), whose sum is σ = 1222913864390400. Its totient is φ = 146745904629600.

The previous prime is 440243352534421. The next prime is 440243352534457. The reversal of 440243352534456 is 654435253342044.

It is a happy number.

440243352534456 is a `hidden beast` number, since 4 + 4 + 0 + 2 + 4 + 3 + 3 + 52 + 534 + 4 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440243352534457) 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, 3901911 + ... + 29928441.

It is an arithmetic number, because the mean of its divisors is an integer number (19108029131100).

Almost surely, 2^{440243352534456} is an apocalyptic number.

It is an amenable number.

440243352534456 is an abundant number, since it is smaller than the sum of its proper divisors (782670511855944).

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

440243352534456 is a wasteful number, since it uses less digits than its factorization.

440243352534456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26104857 (or 26104847 counting only the distinct ones).

The product of its (nonzero) digits is 82944000, while the sum is 54.

The spelling of 440243352534456 in words is "four hundred forty trillion, two hundred forty-three billion, three hundred fifty-two million, five hundred thirty-four thousand, four hundred fifty-six".