168132402 has 32 divisors (see below), whose sum is σ = 378898560. Its totient is φ = 55253520.

The previous prime is 168132389. The next prime is 168132407. The reversal of 168132402 is 204231861.

168132402 is digitally balanced in base 2, 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 (27).

It is not an unprimeable number, because it can be changed into a prime (168132407) 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, 18093 + ... + 25760.

It is an arithmetic number, because the mean of its divisors is an integer number (11840580).

Almost surely, 2^168132402 is an apocalyptic number.

168132402 is an abundant number, since it is smaller than the sum of its proper divisors (210766158).

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

168132402 is a wasteful number, since it uses less digits than its factorization.

168132402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43935 (or 43929 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 168132402 is about 12966.5879089296. The cubic root of 168132402 is about 551.9297524028.

The spelling of 168132402 in words is "one hundred sixty-eight million, one hundred thirty-two thousand, four hundred two".