1423728600 has 192 divisors, whose sum is σ = 5067532800. Its totient is φ = 323911680.

The previous prime is 1423728583. The next prime is 1423728617. The reversal of 1423728600 is 68273241.

It is an interprime number because it is at equal distance from previous prime (1423728583) and next prime (1423728617).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1078741 + ... + 1080059.

It is an arithmetic number, because the mean of its divisors is an integer number (26393400).

Almost surely, 2^1423728600 is an apocalyptic number.

1423728600 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 1423728600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2533766400).

1423728600 is an abundant number, since it is smaller than the sum of its proper divisors (3643804200).

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

1423728600 is a wasteful number, since it uses less digits than its factorization.

1423728600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602 (or 1593 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 1423728600 is about 37732.3283140598. The cubic root of 1423728600 is about 1124.9737870436.

The spelling of 1423728600 in words is "one billion, four hundred twenty-three million, seven hundred twenty-eight thousand, six hundred".