126436220 has 12 divisors (see below), whose sum is σ = 265516104. Its totient is φ = 50574480.

The previous prime is 126436181. The next prime is 126436237. The reversal of 126436220 is 22634621.

It is a super-2 number, since 2×126436220² = 31972235455776800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126436220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3160886 + ... + 3160925.

It is an arithmetic number, because the mean of its divisors is an integer number (22126342).

Almost surely, 2^126436220 is an apocalyptic number.

126436220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126436220 is an abundant number, since it is smaller than the sum of its proper divisors (139079884).

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

126436220 is a wasteful number, since it uses less digits than its factorization.

126436220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6321820 (or 6321818 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 126436220 is about 11244.3861548775. The cubic root of 126436220 is about 501.9076723161.

The spelling of 126436220 in words is "one hundred twenty-six million, four hundred thirty-six thousand, two hundred twenty".