126610220 has 96 divisors (see below), whose sum is σ = 311169600. Its totient is φ = 42762240.

The previous prime is 126610213. The next prime is 126610273. The reversal of 126610220 is 22016621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 126610192 and 126610201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 362606 + ... + 362954.

It is an arithmetic number, because the mean of its divisors is an integer number (3241350).

Almost surely, 2^126610220 is an apocalyptic number.

126610220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126610220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155584800).

126610220 is an abundant number, since it is smaller than the sum of its proper divisors (184559380).

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

126610220 is a wasteful number, since it uses less digits than its factorization.

126610220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 126610220 is about 11252.1206890079. The cubic root of 126610220 is about 502.1378065394.

Adding to 126610220 its reverse (22016621), we get a palindrome (148626841).

The spelling of 126610220 in words is "one hundred twenty-six million, six hundred ten thousand, two hundred twenty".