1427152128 has 72 divisors (see below), whose sum is σ = 3811307808. Its totient is φ = 474089472.

The previous prime is 1427152127. The next prime is 1427152169. The reversal of 1427152128 is 8212517241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427152127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232750 + ... + 238802.

Almost surely, 2^1427152128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1427152128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1905653904).

1427152128 is an abundant number, since it is smaller than the sum of its proper divisors (2384155680).

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

1427152128 is an equidigital number, since it uses as much as digits as its factorization.

1427152128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6379 (or 6365 counting only the distinct ones).

The product of its digits is 8960, while the sum is 33.

The square root of 1427152128 is about 37777.6670534325. The cubic root of 1427152128 is about 1125.8747771949.

Adding to 1427152128 its reverse (8212517241), we get a palindrome (9639669369).

The spelling of 1427152128 in words is "one billion, four hundred twenty-seven million, one hundred fifty-two thousand, one hundred twenty-eight".