1381113624 has 32 divisors (see below), whose sum is σ = 3766674240. Its totient is φ = 418519200.

The previous prime is 1381113623. The next prime is 1381113641. The reversal of 1381113624 is 4263111831.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1381113591 and 1381113600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381113623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2615482 + ... + 2616009.

It is an arithmetic number, because the mean of its divisors is an integer number (117708570).

Almost surely, 2^1381113624 is an apocalyptic number.

It is an amenable number.

1381113624 is an abundant number, since it is smaller than the sum of its proper divisors (2385560616).

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

1381113624 is a wasteful number, since it uses less digits than its factorization.

1381113624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5231511 (or 5231507 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 1381113624 is about 37163.3370945075. The cubic root of 1381113624 is about 1113.6356787787.

The spelling of 1381113624 in words is "one billion, three hundred eighty-one million, one hundred thirteen thousand, six hundred twenty-four".