220746148 has 24 divisors (see below), whose sum is σ = 442072512. Its totient is φ = 94481184.

The previous prime is 220746131. The next prime is 220746179. The reversal of 220746148 is 841647022.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18390 + ... + 27922.

It is an arithmetic number, because the mean of its divisors is an integer number (18419688).

Almost surely, 2^220746148 is an apocalyptic number.

220746148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

220746148 is an abundant number, since it is smaller than the sum of its proper divisors (221326364).

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

220746148 is a wasteful number, since it uses less digits than its factorization.

220746148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10371 (or 10369 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 220746148 is about 14857.5283274170. The cubic root of 220746148 is about 604.3627814882.

The spelling of 220746148 in words is "two hundred twenty million, seven hundred forty-six thousand, one hundred forty-eight".