4000422220400 has 30 divisors (see below), whose sum is σ = 9611014385472. Its totient is φ = 1600168888000.

The previous prime is 4000422220369. The next prime is 4000422220409. The reversal of 4000422220400 is 40222240004.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000422220409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5000527376 + ... + 5000528175.

Almost surely, 2^{4000422220400} is an apocalyptic number.

4000422220400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4000422220400 is an abundant number, since it is smaller than the sum of its proper divisors (5610592165072).

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

4000422220400 is a wasteful number, since it uses less digits than its factorization.

4000422220400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10001055569 (or 10001055558 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 4000422220400 its reverse (40222240004), we get a palindrome (4040644460404).

The spelling of 4000422220400 in words is "four trillion, four hundred twenty-two million, two hundred twenty thousand, four hundred".