168748404 has 24 divisors (see below), whose sum is σ = 429541728. Its totient is φ = 51135840.

The previous prime is 168748399. The next prime is 168748429. The reversal of 168748404 is 404847861.

It is a happy number.

168748404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639067 + ... + 639330.

It is an arithmetic number, because the mean of its divisors is an integer number (17897572).

Almost surely, 2^168748404 is an apocalyptic number.

It is an amenable number.

168748404 is an abundant number, since it is smaller than the sum of its proper divisors (260793324).

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

168748404 is a wasteful number, since it uses less digits than its factorization.

168748404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278415 (or 1278413 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The square root of 168748404 is about 12990.3196265527. The cubic root of 168748404 is about 552.6029826530.

The spelling of 168748404 in words is "one hundred sixty-eight million, seven hundred forty-eight thousand, four hundred four".