168879340 has 96 divisors (see below), whose sum is σ = 426746880. Its totient is φ = 54886656.

The previous prime is 168879331. The next prime is 168879367. The reversal of 168879340 is 43978861.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 576234 + ... + 576526.

It is an arithmetic number, because the mean of its divisors is an integer number (4445280).

Almost surely, 2^168879340 is an apocalyptic number.

168879340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168879340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213373440).

168879340 is an abundant number, since it is smaller than the sum of its proper divisors (257867540).

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

168879340 is a wasteful number, since it uses less digits than its factorization.

168879340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 168879340 is about 12995.3584021373. The cubic root of 168879340 is about 552.7458717437.

The spelling of 168879340 in words is "one hundred sixty-eight million, eight hundred seventy-nine thousand, three hundred forty".