1380407634 has 12 divisors (see below), whose sum is σ = 2990883246. Its totient is φ = 460135872.

The previous prime is 1380407621. The next prime is 1380407659. The reversal of 1380407634 is 4367040831.

1380407634 is a `hidden beast` number, since 13 + 8 + 0 + 4 + 0 + 7 + 634 = 666.

It can be written as a sum of positive squares in only one way, i.e., 737937225 + 642470409 = 27165^2 + 25347^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38344639 + ... + 38344674.

Almost surely, 2^1380407634 is an apocalyptic number.

1380407634 is an abundant number, since it is smaller than the sum of its proper divisors (1610475612).

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

1380407634 is a wasteful number, since it uses less digits than its factorization.

1380407634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76689321 (or 76689318 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 1380407634 is about 37153.8374061146. The cubic root of 1380407634 is about 1113.4458924010.

The spelling of 1380407634 in words is "one billion, three hundred eighty million, four hundred seven thousand, six hundred thirty-four".