168104540 has 12 divisors (see below), whose sum is σ = 353019576. Its totient is φ = 67241808.

The previous prime is 168104527. The next prime is 168104543. The reversal of 168104540 is 45401861.

It is a super-2 number, since 2×168104540² = 56518272737223200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168104543) 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, 4202594 + ... + 4202633.

It is an arithmetic number, because the mean of its divisors is an integer number (29418298).

Almost surely, 2^168104540 is an apocalyptic number.

168104540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168104540 is an abundant number, since it is smaller than the sum of its proper divisors (184915036).

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

168104540 is a wasteful number, since it uses less digits than its factorization.

168104540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8405236 (or 8405234 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 168104540 is about 12965.5134877104. The cubic root of 168104540 is about 551.8992631057.

The spelling of 168104540 in words is "one hundred sixty-eight million, one hundred four thousand, five hundred forty".