1363423280 has 80 divisors (see below), whose sum is σ = 3357880320. Its totient is φ = 513402624.

The previous prime is 1363423277. The next prime is 1363423283. The reversal of 1363423280 is 823243631.

It is an interprime number because it is at equal distance from previous prime (1363423277) and next prime (1363423283).

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (1363423283) 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, 245009 + ... + 250511.

It is an arithmetic number, because the mean of its divisors is an integer number (41973504).

Almost surely, 2^1363423280 is an apocalyptic number.

1363423280 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 1363423280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1678940160).

1363423280 is an abundant number, since it is smaller than the sum of its proper divisors (1994457040).

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

1363423280 is a wasteful number, since it uses less digits than its factorization.

1363423280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5698 (or 5692 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 1363423280 is about 36924.5620150057. The cubic root of 1363423280 is about 1108.8604705743.

The spelling of 1363423280 in words is "one billion, three hundred sixty-three million, four hundred twenty-three thousand, two hundred eighty".