1166440404 has 12 divisors (see below), whose sum is σ = 2721694304. Its totient is φ = 388813464.

The previous prime is 1166440361. The next prime is 1166440409. The reversal of 1166440404 is 4040446611.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166440409) 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, 48601672 + ... + 48601695.

Almost surely, 2^1166440404 is an apocalyptic number.

It is an amenable number.

1166440404 is an abundant number, since it is smaller than the sum of its proper divisors (1555253900).

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

1166440404 is a wasteful number, since it uses less digits than its factorization.

1166440404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97203374 (or 97203372 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 1166440404 is about 34153.1902463006. The cubic root of 1166440404 is about 1052.6585401443.

The spelling of 1166440404 in words is "one billion, one hundred sixty-six million, four hundred forty thousand, four hundred four".