421422423400 has 48 divisors (see below), whose sum is σ = 1068880515840. Its totient is φ = 153244516800.

The previous prime is 421422423391. The next prime is 421422423407. The reversal of 421422423400 is 4324224124.

It is not an unprimeable number, because it can be changed into a prime (421422423407) 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, 95775624 + ... + 95780023.

It is an arithmetic number, because the mean of its divisors is an integer number (22268344080).

Almost surely, 2^421422423400 is an apocalyptic number.

421422423400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421422423400 is an abundant number, since it is smaller than the sum of its proper divisors (647458092440).

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

421422423400 is a wasteful number, since it uses less digits than its factorization.

421422423400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191555674 (or 191555665 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 421422423400 its reverse (4324224124), we get a palindrome (425746647524).

The spelling of 421422423400 in words is "four hundred twenty-one billion, four hundred twenty-two million, four hundred twenty-three thousand, four hundred".