168671040 has 56 divisors (see below), whose sum is σ = 535533600. Its totient is φ = 44978688.

The previous prime is 168670987. The next prime is 168671057. The reversal of 168671040 is 40176861.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 168670992 and 168671010.

It is a congruent number.

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, 86890 + ... + 88809.

It is an arithmetic number, because the mean of its divisors is an integer number (9563100).

Almost surely, 2^168671040 is an apocalyptic number.

168671040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168671040 is an abundant number, since it is smaller than the sum of its proper divisors (366862560).

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

168671040 is a wasteful number, since it uses less digits than its factorization.

168671040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175719 (or 175709 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 168671040 is about 12987.3415293508. The cubic root of 168671040 is about 552.5185213859.

The spelling of 168671040 in words is "one hundred sixty-eight million, six hundred seventy-one thousand, forty".