168477378 has 32 divisors (see below), whose sum is σ = 358219584. Its totient is φ = 52641792.

The previous prime is 168477377. The next prime is 168477383. The reversal of 168477378 is 873774861.

168477378 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

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 168477378.

It is not an unprimeable number, because it can be changed into a prime (168477371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23001 + ... + 29427.

It is an arithmetic number, because the mean of its divisors is an integer number (11194362).

Almost surely, 2^168477378 is an apocalyptic number.

168477378 is an abundant number, since it is smaller than the sum of its proper divisors (189742206).

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

168477378 is a wasteful number, since it uses less digits than its factorization.

168477378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6706.

The product of its digits is 1580544, while the sum is 51.

The square root of 168477378 is about 12979.8835896167. The cubic root of 168477378 is about 552.3069797960.

The spelling of 168477378 in words is "one hundred sixty-eight million, four hundred seventy-seven thousand, three hundred seventy-eight".