1187090404 has 24 divisors (see below), whose sum is σ = 2088734648. Its totient is φ = 590319360.

The previous prime is 1187090383. The next prime is 1187090423. The reversal of 1187090404 is 4040907811.

It can be written as a sum of positive squares in 4 ways, for example, as 68856804 + 1118233600 = 8298^2 + 33440^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1187090404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680974 + ... + 682714.

Almost surely, 2^1187090404 is an apocalyptic number.

It is an amenable number.

1187090404 is a deficient number, since it is larger than the sum of its proper divisors (901644244).

1187090404 is a wasteful number, since it uses less digits than its factorization.

1187090404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575 (or 2573 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 1187090404 is about 34454.1783242613. The cubic root of 1187090404 is about 1058.8341293330.

The spelling of 1187090404 in words is "one billion, one hundred eighty-seven million, ninety thousand, four hundred four".