422040440400 has 60 divisors (see below), whose sum is σ = 1351936214592. Its totient is φ = 112544117120.

The previous prime is 422040440359. The next prime is 422040440401. The reversal of 422040440400 is 4044040224.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422040440401) 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, 175848984 + ... + 175851383.

Almost surely, 2^422040440400 is an apocalyptic number.

422040440400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422040440400 is an abundant number, since it is smaller than the sum of its proper divisors (929895774192).

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

422040440400 is a wasteful number, since it uses less digits than its factorization.

422040440400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351700388 (or 351700377 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 422040440400 its reverse (4044040224), we get a palindrome (426084480624).

The spelling of 422040440400 in words is "four hundred twenty-two billion, forty million, four hundred forty thousand, four hundred".