168949494 has 48 divisors (see below), whose sum is σ = 428093952. Its totient is φ = 47147184.

The previous prime is 168949493. The next prime is 168949499. The reversal of 168949494 is 494949861.

It is a happy number.

168949494 is a `hidden beast` number, since 1 + 68 + 9 + 494 + 94 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 168949494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168949493) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10174 + ... + 21009.

It is an arithmetic number, because the mean of its divisors is an integer number (8918624).

Almost surely, 2^168949494 is an apocalyptic number.

168949494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

168949494 is an abundant number, since it is smaller than the sum of its proper divisors (259144458).

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

168949494 is a wasteful number, since it uses less digits than its factorization.

168949494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31241 (or 31238 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 168949494 is about 12998.0573163839. The cubic root of 168949494 is about 552.8223996870.

The spelling of 168949494 in words is "one hundred sixty-eight million, nine hundred forty-nine thousand, four hundred ninety-four".