1423431200 has 36 divisors (see below), whose sum is σ = 3474953370. Its totient is φ = 569372160.

The previous prime is 1423431173. The next prime is 1423431239. The reversal of 1423431200 is 21343241.

It can be written as a sum of positive squares in 3 ways, for example, as 1164993424 + 258437776 = 34132^2 + 16076^2 .

It is a super-2 number, since 2×1423431200² = 4052312762266880000, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 888845 + ... + 890444.

Almost surely, 2^1423431200 is an apocalyptic number.

1423431200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423431200 is an abundant number, since it is smaller than the sum of its proper divisors (2051522170).

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

1423431200 is a wasteful number, since it uses less digits than its factorization.

1423431200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779309 (or 1779296 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1423431200 is about 37728.3871905492. The cubic root of 1423431200 is about 1124.8954503665.

Adding to 1423431200 its reverse (21343241), we get a palindrome (1444774441).

The spelling of 1423431200 in words is "one billion, four hundred twenty-three million, four hundred thirty-one thousand, two hundred".