167401220 has 24 divisors (see below), whose sum is σ = 401763264. Its totient is φ = 57394656.

The previous prime is 167401183. The next prime is 167401243. The reversal of 167401220 is 22104761.

167401220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×167401220³ (a number of 26 digits) contains 333 as substring.

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, 597722 + ... + 598001.

It is an arithmetic number, because the mean of its divisors is an integer number (16740136).

Almost surely, 2^167401220 is an apocalyptic number.

167401220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

167401220 is an abundant number, since it is smaller than the sum of its proper divisors (234362044).

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

167401220 is a wasteful number, since it uses less digits than its factorization.

167401220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195739 (or 1195737 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 167401220 is about 12938.3623384105. The cubic root of 167401220 is about 551.1285038603.

Adding to 167401220 its reverse (22104761), we get a palindrome (189505981).

The spelling of 167401220 in words is "one hundred sixty-seven million, four hundred one thousand, two hundred twenty".