1298386432 has 160 divisors (see below), whose sum is σ = 3260505600. Its totient is φ = 503635968.

The previous prime is 1298386417. The next prime is 1298386433. The reversal of 1298386432 is 2346838921.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298386433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1565794 + ... + 1566622.

It is an arithmetic number, because the mean of its divisors is an integer number (20378160).

Almost surely, 2^1298386432 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 1298386432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1630252800).

1298386432 is an abundant number, since it is smaller than the sum of its proper divisors (1962119168).

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

1298386432 is an equidigital number, since it uses as much as digits as its factorization.

1298386432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896 (or 880 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 1298386432 is about 36033.1296448144. The cubic root of 1298386432 is about 1090.9411482566.

The spelling of 1298386432 in words is "one billion, two hundred ninety-eight million, three hundred eighty-six thousand, four hundred thirty-two".