421303400 has 48 divisors (see below), whose sum is σ = 1119467040. Its totient is φ = 144446400.

The previous prime is 421303381. The next prime is 421303409. The reversal of 421303400 is 4303124.

It is not an unprimeable number, because it can be changed into a prime (421303409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149066 + ... + 151865.

It is an arithmetic number, because the mean of its divisors is an integer number (23322230).

Almost surely, 2^421303400 is an apocalyptic number.

421303400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421303400 is an abundant number, since it is smaller than the sum of its proper divisors (698163640).

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

421303400 is a wasteful number, since it uses less digits than its factorization.

421303400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300954 (or 300945 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 421303400 is about 20525.6766027335. The cubic root of 421303400 is about 749.6611209785.

Adding to 421303400 its reverse (4303124), we get a palindrome (425606524).

The spelling of 421303400 in words is "four hundred twenty-one million, three hundred three thousand, four hundred".