1380767850 has 384 divisors, whose sum is σ = 4885401600. Its totient is φ = 278380800.

The previous prime is 1380767849. The next prime is 1380767891. The reversal of 1380767850 is 587670831.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 1380767796 and 1380767805.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3845971 + ... + 3846329.

It is an arithmetic number, because the mean of its divisors is an integer number (12722400).

Almost surely, 2^1380767850 is an apocalyptic number.

1380767850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1380767850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2442700800).

1380767850 is an abundant number, since it is smaller than the sum of its proper divisors (3504633750).

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

1380767850 is a wasteful number, since it uses less digits than its factorization.

1380767850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 1380767850 is about 37158.6847183804. The cubic root of 1380767850 is about 1113.5427348442.

The spelling of 1380767850 in words is "one billion, three hundred eighty million, seven hundred sixty-seven thousand, eight hundred fifty".