146814220 has 48 divisors (see below), whose sum is σ = 353102400. Its totient is φ = 50229504.

The previous prime is 146814203. The next prime is 146814257. The reversal of 146814220 is 22418641.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 94006 + ... + 95554.

It is an arithmetic number, because the mean of its divisors is an integer number (7356300).

Almost surely, 2^146814220 is an apocalyptic number.

146814220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146814220 is an abundant number, since it is smaller than the sum of its proper divisors (206288180).

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

146814220 is a wasteful number, since it uses less digits than its factorization.

146814220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242 (or 2240 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 146814220 is about 12116.6917927296. The cubic root of 146814220 is about 527.5407843402.

The spelling of 146814220 in words is "one hundred forty-six million, eight hundred fourteen thousand, two hundred twenty".