442021311241240 has 32 divisors (see below), whose sum is σ = 994549034382480. Its totient is φ = 176808331769472.

The previous prime is 442021311241201. The next prime is 442021311241261. The reversal of 442021311241240 is 42142113120244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34497814 + ... + 45542746.

Almost surely, 2^{442021311241240} is an apocalyptic number.

442021311241240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442021311241240 is an abundant number, since it is smaller than the sum of its proper divisors (552527723141240).

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

442021311241240 is a wasteful number, since it uses less digits than its factorization.

442021311241240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12045451 (or 12045447 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 442021311241240 its reverse (42142113120244), we get a palindrome (484163424361484).

The spelling of 442021311241240 in words is "four hundred forty-two trillion, twenty-one billion, three hundred eleven million, two hundred forty-one thousand, two hundred forty".