168620530 has 32 divisors (see below), whose sum is σ = 328624128. Its totient is φ = 61924800.

The previous prime is 168620509. The next prime is 168620533. The reversal of 168620530 is 35026861.

168620530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 168620492 and 168620501.

It is not an unprimeable number, because it can be changed into a prime (168620533) 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, 21435 + ... + 28225.

It is an arithmetic number, because the mean of its divisors is an integer number (10269504).

Almost surely, 2^168620530 is an apocalyptic number.

168620530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168620530 is a deficient number, since it is larger than the sum of its proper divisors (160003598).

168620530 is a wasteful number, since it uses less digits than its factorization.

168620530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7002.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 168620530 is about 12985.3967979419. The cubic root of 168620530 is about 552.4633637316.

The spelling of 168620530 in words is "one hundred sixty-eight million, six hundred twenty thousand, five hundred thirty".