146204220 has 48 divisors (see below), whose sum is σ = 413608608. Its totient is φ = 38584320.

The previous prime is 146204213. The next prime is 146204239. The reversal of 146204220 is 22402641.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6741 + ... + 18380.

It is an arithmetic number, because the mean of its divisors is an integer number (8616846).

Almost surely, 2^146204220 is an apocalyptic number.

146204220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146204220 is an abundant number, since it is smaller than the sum of its proper divisors (267404388).

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

146204220 is a wasteful number, since it uses less digits than its factorization.

146204220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25230 (or 25228 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 146204220 is about 12091.4937042534. The cubic root of 146204220 is about 526.8091417846.

Adding to 146204220 its reverse (22402641), we get a palindrome (168606861).

The spelling of 146204220 in words is "one hundred forty-six million, two hundred four thousand, two hundred twenty".