1381038800 has 60 divisors (see below), whose sum is σ = 3322138560. Its totient is φ = 551717760.

The previous prime is 1381038779. The next prime is 1381038839. The reversal of 1381038800 is 88301831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 413939 + ... + 417261.

It is an arithmetic number, because the mean of its divisors is an integer number (55368976).

Almost surely, 2^1381038800 is an apocalyptic number.

1381038800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1381038800 is an abundant number, since it is smaller than the sum of its proper divisors (1941099760).

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

1381038800 is a wasteful number, since it uses less digits than its factorization.

1381038800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4380 (or 4369 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1381038800 is about 37162.3303897912. The cubic root of 1381038800 is about 1113.6155674281.

The spelling of 1381038800 in words is "one billion, three hundred eighty-one million, thirty-eight thousand, eight hundred".