434221400 has 24 divisors (see below), whose sum is σ = 1009565220. Its totient is φ = 173688480.

The previous prime is 434221397. The next prime is 434221423. The reversal of 434221400 is 4122434.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1085354 + ... + 1085753.

Almost surely, 2^434221400 is an apocalyptic number.

434221400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

434221400 is an abundant number, since it is smaller than the sum of its proper divisors (575343820).

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

434221400 is a wasteful number, since it uses less digits than its factorization.

434221400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171123 (or 2171114 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 434221400 is about 20837.9797485265. The cubic root of 434221400 is about 757.2461507857.

Adding to 434221400 its reverse (4122434), we get a palindrome (438343834).

The spelling of 434221400 in words is "four hundred thirty-four million, two hundred twenty-one thousand, four hundred".