1423928880 has 240 divisors, whose sum is σ = 5253520896. Its totient is φ = 342766080.

The previous prime is 1423928879. The next prime is 1423928887. The reversal of 1423928880 is 888293241.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1423928887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1290409 + ... + 1291511.

Almost surely, 2^1423928880 is an apocalyptic number.

1423928880 is a gapful number since it is divisible by the number (10) 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 1423928880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2626760448).

1423928880 is an abundant number, since it is smaller than the sum of its proper divisors (3829592016).

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

1423928880 is a wasteful number, since it uses less digits than its factorization.

1423928880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 1423928880 is about 37734.9821783448. The cubic root of 1423928880 is about 1125.0265356704.

The spelling of 1423928880 in words is "one billion, four hundred twenty-three million, nine hundred twenty-eight thousand, eight hundred eighty".