1321602048 has 176 divisors, whose sum is σ = 4216164960. Its totient is φ = 406536192.

The previous prime is 1321602041. The next prime is 1321602059. The reversal of 1321602048 is 8402061231.

1321602048 is a `hidden beast` number, since 13 + 2 + 1 + 602 + 0 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1321602041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357586 + ... + 361262.

Almost surely, 2^1321602048 is an apocalyptic number.

1321602048 is a gapful number since it is divisible by the number (18) 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 1321602048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2108082480).

1321602048 is an abundant number, since it is smaller than the sum of its proper divisors (2894562912).

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

1321602048 is a wasteful number, since it uses less digits than its factorization.

1321602048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719 (or 3695 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1321602048 is about 36353.8450236010. The cubic root of 1321602048 is about 1097.4049150798.

Adding to 1321602048 its reverse (8402061231), we get a palindrome (9723663279).

The spelling of 1321602048 in words is "one billion, three hundred twenty-one million, six hundred two thousand, forty-eight".