166829420 has 24 divisors (see below), whose sum is σ = 350635824. Its totient is φ = 66675776.

The previous prime is 166829407. The next prime is 166829423. The reversal of 166829420 is 24928661.

It is not an unprimeable number, because it can be changed into a prime (166829423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27722 + ... + 33198.

It is an arithmetic number, because the mean of its divisors is an integer number (14609826).

Almost surely, 2^166829420 is an apocalyptic number.

166829420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166829420 is an abundant number, since it is smaller than the sum of its proper divisors (183806404).

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

166829420 is a wasteful number, since it uses less digits than its factorization.

166829420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7009 (or 7007 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 166829420 is about 12916.2463587530. The cubic root of 166829420 is about 550.5002830937.

The spelling of 166829420 in words is "one hundred sixty-six million, eight hundred twenty-nine thousand, four hundred twenty".