1423056432 has 120 divisors (see below), whose sum is σ = 4303224576. Its totient is φ = 404041344.

The previous prime is 1423056409. The next prime is 1423056449. The reversal of 1423056432 is 2346503241.

It is a self number, because there is not a number n which added to its sum of digits gives 1423056432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 390973 + ... + 394595.

Almost surely, 2^1423056432 is an apocalyptic number.

1423056432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1423056432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2151612288).

1423056432 is an abundant number, since it is smaller than the sum of its proper divisors (2880168144).

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

1423056432 is a wasteful number, since it uses less digits than its factorization.

1423056432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3815 (or 3802 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 1423056432 is about 37723.4202054904. The cubic root of 1423056432 is about 1124.7967190236.

Adding to 1423056432 its reverse (2346503241), we get a palindrome (3769559673).

The spelling of 1423056432 in words is "one billion, four hundred twenty-three million, fifty-six thousand, four hundred thirty-two".