420244404400 has 30 divisors (see below), whose sum is σ = 1009637182532. Its totient is φ = 168097761600.

The previous prime is 420244404397. The next prime is 420244404401. The reversal of 420244404400 is 4404442024.

It is a super-3 number, since 3×420244404400³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (420244404401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 525305106 + ... + 525305905.

Almost surely, 2^420244404400 is an apocalyptic number.

420244404400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420244404400 is an abundant number, since it is smaller than the sum of its proper divisors (589392778132).

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

420244404400 is a wasteful number, since it uses less digits than its factorization.

420244404400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050611029 (or 1050611018 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 420244404400 its reverse (4404442024), we get a palindrome (424648846424).

The spelling of 420244404400 in words is "four hundred twenty billion, two hundred forty-four million, four hundred four thousand, four hundred".