147440220 has 24 divisors (see below), whose sum is σ = 412832784. Its totient is φ = 39317376.

The previous prime is 147440213. The next prime is 147440257. The reversal of 147440220 is 22044741.

It is a congruent number.

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, 1228609 + ... + 1228728.

It is an arithmetic number, because the mean of its divisors is an integer number (17201366).

Almost surely, 2^147440220 is an apocalyptic number.

147440220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147440220 is an abundant number, since it is smaller than the sum of its proper divisors (265392564).

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

147440220 is a wasteful number, since it uses less digits than its factorization.

147440220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457349 (or 2457347 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 147440220 is about 12142.4964484244. The cubic root of 147440220 is about 528.2895135157.

Adding to 147440220 its reverse (22044741), we get a palindrome (169484961).

The spelling of 147440220 in words is "one hundred forty-seven million, four hundred forty thousand, two hundred twenty".