1436400128 has 40 divisors (see below), whose sum is σ = 2962608000. Its totient is φ = 695024640.

The previous prime is 1436400127. The next prime is 1436400137. The reversal of 1436400128 is 8210046341.

It is a self number, because there is not a number n which added to its sum of digits gives 1436400128.

It is not an unprimeable number, because it can be changed into a prime (1436400127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29378 + ... + 61121.

It is an arithmetic number, because the mean of its divisors is an integer number (74065200).

Almost surely, 2^1436400128 is an apocalyptic number.

It is an amenable number.

1436400128 is an abundant number, since it is smaller than the sum of its proper divisors (1526207872).

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

1436400128 is an frugal number, since it uses more digits than its factorization.

1436400128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90548 (or 90532 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 1436400128 is about 37899.8697623092. The cubic root of 1436400128 is about 1128.3014468556.

Adding to 1436400128 its reverse (8210046341), we get a palindrome (9646446469).

The spelling of 1436400128 in words is "one billion, four hundred thirty-six million, four hundred thousand, one hundred twenty-eight".