126905244 has 48 divisors (see below), whose sum is σ = 301774368. Its totient is φ = 41499648.

The previous prime is 126905243. The next prime is 126905249. The reversal of 126905244 is 442509621.

It is a super-2 number, since 2×126905244² = 32209881909399072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126905243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277464 + ... + 277920.

It is an arithmetic number, because the mean of its divisors is an integer number (6286966).

Almost surely, 2^126905244 is an apocalyptic number.

It is an amenable number.

126905244 is an abundant number, since it is smaller than the sum of its proper divisors (174869124).

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

126905244 is a wasteful number, since it uses less digits than its factorization.

126905244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 126905244 is about 11265.2227674378. Note that the first 3 decimals coincide. The cubic root of 126905244 is about 502.5275270186.

The spelling of 126905244 in words is "one hundred twenty-six million, nine hundred five thousand, two hundred forty-four".