223129620 has 96 divisors (see below), whose sum is σ = 793363200. Its totient is φ = 51000192.

The previous prime is 223129603. The next prime is 223129637. The reversal of 223129620 is 26921322.

223129620 is a `hidden beast` number, since 2 + 2 + 31 + 2 + 9 + 620 = 666.

223129620 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (223129603) and next prime (223129637).

It is a super-3 number, since 3×223129620³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 25735 + ... + 33294.

It is an arithmetic number, because the mean of its divisors is an integer number (8264200).

Almost surely, 2^223129620 is an apocalyptic number.

223129620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223129620 is an abundant number, since it is smaller than the sum of its proper divisors (570233580).

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

223129620 is a wasteful number, since it uses less digits than its factorization.

223129620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59054 (or 59046 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 223129620 is about 14937.5238911943. The cubic root of 223129620 is about 606.5301702870.

The spelling of 223129620 in words is "two hundred twenty-three million, one hundred twenty-nine thousand, six hundred twenty".