168043620 has 48 divisors (see below), whose sum is σ = 472243968. Its totient is φ = 44647680.

The previous prime is 168043597. The next prime is 168043627. The reversal of 168043620 is 26340861.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (168043627) 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, 11877 + ... + 21843.

It is an arithmetic number, because the mean of its divisors is an integer number (9838416).

Almost surely, 2^168043620 is an apocalyptic number.

168043620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168043620 is an abundant number, since it is smaller than the sum of its proper divisors (304200348).

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

168043620 is a wasteful number, since it uses less digits than its factorization.

168043620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10260 (or 10258 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 168043620 is about 12963.1639656374. The cubic root of 168043620 is about 551.8325868074.

The spelling of 168043620 in words is "one hundred sixty-eight million, forty-three thousand, six hundred twenty".