1380774834 has 12 divisors (see below), whose sum is σ = 2991678846. Its totient is φ = 460258272.

The previous prime is 1380774827. The next prime is 1380774839. The reversal of 1380774834 is 4384770831.

It can be written as a sum of positive squares in only one way, i.e., 786634209 + 594140625 = 28047^2 + 24375^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1380774834.

It is not an unprimeable number, because it can be changed into a prime (1380774839) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38354839 + ... + 38354874.

Almost surely, 2^1380774834 is an apocalyptic number.

1380774834 is an abundant number, since it is smaller than the sum of its proper divisors (1610904012).

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

1380774834 is a wasteful number, since it uses less digits than its factorization.

1380774834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76709721 (or 76709718 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 1380774834 is about 37158.7786936008. The cubic root of 1380774834 is about 1113.5446122946.

The spelling of 1380774834 in words is "one billion, three hundred eighty million, seven hundred seventy-four thousand, eight hundred thirty-four".