220129446 has 16 divisors (see below), whose sum is σ = 445564224. Its totient is φ = 72492264.

The previous prime is 220129439. The next prime is 220129453. The reversal of 220129446 is 644921022.

It is an interprime number because it is at equal distance from previous prime (220129439) and next prime (220129453).

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, 220516 + ... + 221511.

It is an arithmetic number, because the mean of its divisors is an integer number (27847764).

Almost surely, 2^220129446 is an apocalyptic number.

220129446 is an abundant number, since it is smaller than the sum of its proper divisors (225434778).

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

220129446 is a wasteful number, since it uses less digits than its factorization.

220129446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442115.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 220129446 is about 14836.7599562708. The cubic root of 220129446 is about 603.7994506174.

The spelling of 220129446 in words is "two hundred twenty million, one hundred twenty-nine thousand, four hundred forty-six".