1381294080 has 224 divisors, whose sum is σ = 4914900000. Its totient is φ = 368050176.

The previous prime is 1381294073. The next prime is 1381294087. The reversal of 1381294080 is 804921831.

It is an interprime number because it is at equal distance from previous prime (1381294073) and next prime (1381294087).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381294087) 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, 1105296 + ... + 1106544.

Almost surely, 2^1381294080 is an apocalyptic number.

1381294080 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 1381294080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2457450000).

1381294080 is an abundant number, since it is smaller than the sum of its proper divisors (3533605920).

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

1381294080 is an equidigital number, since it uses as much as digits as its factorization.

1381294080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289 (or 1259 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1381294080 is about 37165.7648919002. The cubic root of 1381294080 is about 1113.6841791300.

The spelling of 1381294080 in words is "one billion, three hundred eighty-one million, two hundred ninety-four thousand, eighty".