1423725768 has 128 divisors (see below), whose sum is σ = 4118688000. Its totient is φ = 455132160.

The previous prime is 1423725761. The next prime is 1423725839. The reversal of 1423725768 is 8675273241.

1423725768 is a `hidden beast` number, since 1 + 4 + 2 + 3 + 72 + 576 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (1423725761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1045408 + ... + 1046768.

It is an arithmetic number, because the mean of its divisors is an integer number (32177250).

Almost surely, 2^1423725768 is an apocalyptic number.

1423725768 is a gapful number since it is divisible by the number (18) 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 1423725768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2059344000).

1423725768 is an abundant number, since it is smaller than the sum of its proper divisors (2694962232).

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

1423725768 is a wasteful number, since it uses less digits than its factorization.

1423725768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572 (or 1562 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 1423725768 is about 37732.2907865398. The cubic root of 1423725768 is about 1124.9730411318.

The spelling of 1423725768 in words is "one billion, four hundred twenty-three million, seven hundred twenty-five thousand, seven hundred sixty-eight".