1423225856 has 176 divisors, whose sum is σ = 3425204160. Its totient is φ = 583925760.

The previous prime is 1423225849. The next prime is 1423225877. The reversal of 1423225856 is 6585223241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

Its product of digits (115200) is a multiple of the sum of its prime factors (400).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4299611 + ... + 4299941.

Almost surely, 2^1423225856 is an apocalyptic number.

1423225856 is a gapful number since it is divisible by the number (16) 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 1423225856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1712602080).

1423225856 is an abundant number, since it is smaller than the sum of its proper divisors (2001978304).

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

1423225856 is a wasteful number, since it uses less digits than its factorization.

1423225856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 382 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The square root of 1423225856 is about 37725.6657462794. The cubic root of 1423225856 is about 1124.8413553413.

The spelling of 1423225856 in words is "one billion, four hundred twenty-three million, two hundred twenty-five thousand, eight hundred fifty-six".