1043668405 has 32 divisors (see below), whose sum is σ = 1391281920. Its totient is φ = 746780160.

The previous prime is 1043668397. The next prime is 1043668411. The reversal of 1043668405 is 5048663401.

It is a happy number.

It is not a de Polignac number, because 1043668405 - 2³ = 1043668397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270369 + ... + 274201.

It is an arithmetic number, because the mean of its divisors is an integer number (43477560).

Almost surely, 2^1043668405 is an apocalyptic number.

It is an amenable number.

1043668405 is a deficient number, since it is larger than the sum of its proper divisors (347613515).

1043668405 is a wasteful number, since it uses less digits than its factorization.

1043668405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3981.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 1043668405 is about 32305.8571314862. The cubic root of 1043668405 is about 1014.3492492059.

The spelling of 1043668405 in words is "one billion, forty-three million, six hundred sixty-eight thousand, four hundred five".