1432681728 has 36 divisors (see below), whose sum is σ = 3813024768. Its totient is φ = 477560320.

The previous prime is 1432681651. The next prime is 1432681739. The reversal of 1432681728 is 8271862341.

It is a self number, because there is not a number n which added to its sum of digits gives 1432681728.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 931968 + ... + 933503.

Almost surely, 2^1432681728 is an apocalyptic number.

It is an amenable number.

1432681728 is an abundant number, since it is smaller than the sum of its proper divisors (2380343040).

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

1432681728 is an equidigital number, since it uses as much as digits as its factorization.

1432681728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865490 (or 1865476 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 1432681728 is about 37850.7823961408. The cubic root of 1432681728 is about 1127.3269965612.

The spelling of 1432681728 in words is "one billion, four hundred thirty-two million, six hundred eighty-one thousand, seven hundred twenty-eight".