440460668021 has 16 divisors (see below), whose sum is σ = 503027255808. Its totient is φ = 381761622000.

The previous prime is 440460667991. The next prime is 440460668027. The reversal of 440460668021 is 120866064044.

It is not a de Polignac number, because 440460668021 - 2⁶ = 440460667957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 440460668021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440460668027) 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, 2757755 + ... + 2913096.

It is an arithmetic number, because the mean of its divisors is an integer number (31439203488).

Almost surely, 2^440460668021 is an apocalyptic number.

It is an amenable number.

440460668021 is a deficient number, since it is larger than the sum of its proper divisors (62566587787).

440460668021 is a wasteful number, since it uses less digits than its factorization.

440460668021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5671192.

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 440460668021 in words is "four hundred forty billion, four hundred sixty million, six hundred sixty-eight thousand, twenty-one".