126202020 has 48 divisors (see below), whose sum is σ = 403847808. Its totient is φ = 28846080.

The previous prime is 126202007. The next prime is 126202039. The reversal of 126202020 is 20202621.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 149821 + ... + 150660.

It is an arithmetic number, because the mean of its divisors is an integer number (8413496).

Almost surely, 2^126202020 is an apocalyptic number.

126202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126202020 is an abundant number, since it is smaller than the sum of its proper divisors (277645788).

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

126202020 is a wasteful number, since it uses less digits than its factorization.

126202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300500 (or 300498 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 126202020 is about 11233.9672422524. The cubic root of 126202020 is about 501.5975833516.

Adding to 126202020 its reverse (20202621), we get a palindrome (146404641).

The spelling of 126202020 in words is "one hundred twenty-six million, two hundred two thousand, twenty".