1393798320 has 160 divisors (see below), whose sum is σ = 4873021440. Its totient is φ = 366094080.

The previous prime is 1393798313. The next prime is 1393798327. The reversal of 1393798320 is 238973931.

It is an interprime number because it is at equal distance from previous prime (1393798313) and next prime (1393798327).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1393798327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139905 + ... + 149535.

It is an arithmetic number, because the mean of its divisors is an integer number (30456384).

Almost surely, 2^1393798320 is an apocalyptic number.

1393798320 is a gapful number since it is divisible by the number (10) 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 1393798320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2436510720).

1393798320 is an abundant number, since it is smaller than the sum of its proper divisors (3479223120).

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

1393798320 is a wasteful number, since it uses less digits than its factorization.

1393798320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9720 (or 9708 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 1393798320 is about 37333.6084513672. The cubic root of 1393798320 is about 1117.0346515241.

The spelling of 1393798320 in words is "one billion, three hundred ninety-three million, seven hundred ninety-eight thousand, three hundred twenty".