168942464 has 48 divisors (see below), whose sum is σ = 357605880. Its totient is φ = 79484928.

The previous prime is 168942461. The next prime is 168942469. The reversal of 168942464 is 464249861.

It is a super-2 number, since 2×168942464² = 57083112284782592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168942461) 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 5 ways as a sum of consecutive naturals, for example, 34709 + ... + 39275.

Almost surely, 2^168942464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168942464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178802940).

168942464 is an abundant number, since it is smaller than the sum of its proper divisors (188663416).

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

168942464 is an equidigital number, since it uses as much as digits as its factorization.

168942464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4615 (or 4586 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 168942464 is about 12997.7868885438. The cubic root of 168942464 is about 552.8147319214.

The spelling of 168942464 in words is "one hundred sixty-eight million, nine hundred forty-two thousand, four hundred sixty-four".