1161667404 has 36 divisors (see below), whose sum is σ = 2943289440. Its totient is φ = 386318880.

The previous prime is 1161667393. The next prime is 1161667411. The reversal of 1161667404 is 4047661611.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21919 + ... + 52950.

It is an arithmetic number, because the mean of its divisors is an integer number (81758040).

Almost surely, 2^1161667404 is an apocalyptic number.

It is an amenable number.

1161667404 is an abundant number, since it is smaller than the sum of its proper divisors (1781622036).

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

1161667404 is a wasteful number, since it uses less digits than its factorization.

1161667404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75310 (or 75305 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1161667404 is about 34083.2422753470. The cubic root of 1161667404 is about 1051.2207733258.

The spelling of 1161667404 in words is "one billion, one hundred sixty-one million, six hundred sixty-seven thousand, four hundred four".