168496440 has 64 divisors (see below), whose sum is σ = 577704960. Its totient is φ = 38513280.

The previous prime is 168496423. The next prime is 168496441. The reversal of 168496440 is 44694861.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 168496392 and 168496401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168496441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99456 + ... + 101135.

It is an arithmetic number, because the mean of its divisors is an integer number (9026640).

Almost surely, 2^168496440 is an apocalyptic number.

168496440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168496440 is an abundant number, since it is smaller than the sum of its proper divisors (409208520).

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

168496440 is a wasteful number, since it uses less digits than its factorization.

168496440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200612 (or 200608 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 168496440 is about 12980.6178589465. The cubic root of 168496440 is about 552.3278088607.

The spelling of 168496440 in words is "one hundred sixty-eight million, four hundred ninety-six thousand, four hundred forty".