1423224012 has 72 divisors (see below), whose sum is σ = 3987701760. Its totient is φ = 393513120.

The previous prime is 1423223993. The next prime is 1423224029. The reversal of 1423224012 is 2104223241.

It is a super-2 number, since 2×1423224012² = 4051133176666752288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1423224012.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20812 + ... + 57267.

Almost surely, 2^1423224012 is an apocalyptic number.

1423224012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1423224012 is an abundant number, since it is smaller than the sum of its proper divisors (2564477748).

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

1423224012 is a wasteful number, since it uses less digits than its factorization.

1423224012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78131 (or 78122 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1423224012 is about 37725.6413066763. The cubic root of 1423224012 is about 1124.8408695416.

Adding to 1423224012 its reverse (2104223241), we get a palindrome (3527447253).

The spelling of 1423224012 in words is "one billion, four hundred twenty-three million, two hundred twenty-four thousand, twelve".