179742420 has 144 divisors (see below), whose sum is σ = 640628352. Its totient is φ = 40216320.

The previous prime is 179742419. The next prime is 179742421. The reversal of 179742420 is 24247971.

179742420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (179742419) and next prime (179742421).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (179742421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22249 + ... + 29231.

It is an arithmetic number, because the mean of its divisors is an integer number (4448808).

Almost surely, 2^179742420 is an apocalyptic number.

179742420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 179742420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320314176).

179742420 is an abundant number, since it is smaller than the sum of its proper divisors (460885932).

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

179742420 is a wasteful number, since it uses less digits than its factorization.

179742420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7022 (or 7017 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 179742420 is about 13406.8049885124. The cubic root of 179742420 is about 564.3521642471.

The spelling of 179742420 in words is "one hundred seventy-nine million, seven hundred forty-two thousand, four hundred twenty".