168860404 has 6 divisors (see below), whose sum is σ = 295505714. Its totient is φ = 84430200.

The previous prime is 168860401. The next prime is 168860407. The reversal of 168860404 is 404068861.

It is an interprime number because it is at equal distance from previous prime (168860401) and next prime (168860407).

It can be written as a sum of positive squares in only one way, i.e., 150111504 + 18748900 = 12252^2 + 4330^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168860401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21107547 + ... + 21107554.

Almost surely, 2^168860404 is an apocalyptic number.

It is an amenable number.

168860404 is a deficient number, since it is larger than the sum of its proper divisors (126645310).

168860404 is a wasteful number, since it uses less digits than its factorization.

168860404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42215105 (or 42215103 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 168860404 is about 12994.6298138885. The cubic root of 168860404 is about 552.7252116538.

The spelling of 168860404 in words is "one hundred sixty-eight million, eight hundred sixty thousand, four hundred four".