147770220 has 192 divisors, whose sum is σ = 479808000. Its totient is φ = 33875712.

The previous prime is 147770179. The next prime is 147770299. The reversal of 147770220 is 22077741.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2504551 + ... + 2504609.

It is an arithmetic number, because the mean of its divisors is an integer number (2499000).

Almost surely, 2^147770220 is an apocalyptic number.

147770220 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 147770220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239904000).

147770220 is an abundant number, since it is smaller than the sum of its proper divisors (332037780).

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

147770220 is a wasteful number, since it uses less digits than its factorization.

147770220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 147770220 is about 12156.0774923492. The cubic root of 147770220 is about 528.6833581878.

The spelling of 147770220 in words is "one hundred forty-seven million, seven hundred seventy thousand, two hundred twenty".