421432323055422 has 32 divisors (see below), whose sum is σ = 963283890142464. Its totient is φ = 120407984049600.

The previous prime is 421432323055421. The next prime is 421432323055459. The reversal of 421432323055422 is 224550323234124.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421432323055421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48035479 + ... + 56127282.

It is an arithmetic number, because the mean of its divisors is an integer number (30102621566952).

Almost surely, 2^{421432323055422} is an apocalyptic number.

421432323055422 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

421432323055422 is an abundant number, since it is smaller than the sum of its proper divisors (541851567087042).

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

421432323055422 is a wasteful number, since it uses less digits than its factorization.

421432323055422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104259104.

The product of its (nonzero) digits is 1382400, while the sum is 42.

Adding to 421432323055422 its reverse (224550323234124), we get a palindrome (645982646289546).

The spelling of 421432323055422 in words is "four hundred twenty-one trillion, four hundred thirty-two billion, three hundred twenty-three million, fifty-five thousand, four hundred twenty-two".