1180390634 has 8 divisors (see below), whose sum is σ = 1770784068. Its totient is φ = 590129280.

The previous prime is 1180390633. The next prime is 1180390667. The reversal of 1180390634 is 4360930811.

It can be written as a sum of positive squares in 2 ways, for example, as 1180266025 + 124609 = 34355^2 + 353^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1180390594 and 1180390603.

It is not an unprimeable number, because it can be changed into a prime (1180390633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6377 + ... + 49004.

Almost surely, 2^1180390634 is an apocalyptic number.

1180390634 is a deficient number, since it is larger than the sum of its proper divisors (590393434).

1180390634 is a wasteful number, since it uses less digits than its factorization.

1180390634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66040.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 1180390634 is about 34356.8135018369. The cubic root of 1180390634 is about 1056.8384001523.

The spelling of 1180390634 in words is "one billion, one hundred eighty million, three hundred ninety thousand, six hundred thirty-four".