421442012004440 has 32 divisors (see below), whose sum is σ = 1083708030869280. Its totient is φ = 144494404115712.

The previous prime is 421442012004439. The next prime is 421442012004487. The reversal of 421442012004440 is 44400210244124.

It is a super-2 number, since 2×421442012004440² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421442012004397 and 421442012004406.

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, 752575021157 + ... + 752575021716.

It is an arithmetic number, because the mean of its divisors is an integer number (33865875964665).

Almost surely, 2^{421442012004440} is an apocalyptic number.

421442012004440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421442012004440 is an abundant number, since it is smaller than the sum of its proper divisors (662266018864840).

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

421442012004440 is a wasteful number, since it uses less digits than its factorization.

421442012004440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505150042891 (or 1505150042887 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

Adding to 421442012004440 its reverse (44400210244124), we get a palindrome (465842222248564).

The spelling of 421442012004440 in words is "four hundred twenty-one trillion, four hundred forty-two billion, twelve million, four thousand, four hundred forty".