421401200 has 60 divisors (see below), whose sum is σ = 1104465768. Its totient is φ = 153235200.

The previous prime is 421401191. The next prime is 421401217. The reversal of 421401200 is 2104124.

It is a super-2 number, since 2×421401200² = 355157942722880000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43487 + ... + 52286.

Almost surely, 2^421401200 is an apocalyptic number.

421401200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421401200 is an abundant number, since it is smaller than the sum of its proper divisors (683064568).

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

421401200 is a wasteful number, since it uses less digits than its factorization.

421401200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95802 (or 95791 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 421401200 is about 20528.0588463693. The cubic root of 421401200 is about 749.7191244547.

Adding to 421401200 its reverse (2104124), we get a palindrome (423505324).

The spelling of 421401200 in words is "four hundred twenty-one million, four hundred one thousand, two hundred".