1422220400 has 30 divisors (see below), whose sum is σ = 3416885472. Its totient is φ = 568888000.

The previous prime is 1422220381. The next prime is 1422220403. The reversal of 1422220400 is 40222241.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422220403) 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, 1777376 + ... + 1778175.

Almost surely, 2^1422220400 is an apocalyptic number.

1422220400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1422220400 is an abundant number, since it is smaller than the sum of its proper divisors (1994665072).

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

1422220400 is a wasteful number, since it uses less digits than its factorization.

1422220400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3555569 (or 3555558 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1422220400 is about 37712.3375037931. The cubic root of 1422220400 is about 1124.5764067807.

Adding to 1422220400 its reverse (40222241), we get a palindrome (1462442641).

The spelling of 1422220400 in words is "one billion, four hundred twenty-two million, two hundred twenty thousand, four hundred".