1381052416 has 52 divisors (see below), whose sum is σ = 2777666392. Its totient is φ = 686555136.

The previous prime is 1381052401. The next prime is 1381052447. The reversal of 1381052416 is 6142501831.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 789655 + ... + 791401.

Almost surely, 2^1381052416 is an apocalyptic number.

1381052416 is a gapful number since it is divisible by the number (16) 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 1381052416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1388833196).

1381052416 is an abundant number, since it is smaller than the sum of its proper divisors (1396613976).

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

1381052416 is an equidigital number, since it uses as much as digits as its factorization.

1381052416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964 (or 1942 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1381052416 is about 37162.5135856013. The cubic root of 1381052416 is about 1113.6192272190.

The spelling of 1381052416 in words is "one billion, three hundred eighty-one million, fifty-two thousand, four hundred sixteen".