126443772 has 108 divisors (see below), whose sum is σ = 395675280. Its totient is φ = 33336576.

The previous prime is 126443731. The next prime is 126443791. The reversal of 126443772 is 277344621.

126443772 is a `hidden beast` number, since 1 + 2 + 644 + 3 + 7 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 41104 + ... + 44072.

It is an arithmetic number, because the mean of its divisors is an integer number (3663660).

Almost surely, 2^126443772 is an apocalyptic number.

126443772 is a gapful number since it is divisible by the number (12) 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 126443772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197837640).

126443772 is an abundant number, since it is smaller than the sum of its proper divisors (269231508).

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

126443772 is a wasteful number, since it uses less digits than its factorization.

126443772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012 (or 2994 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 126443772 is about 11244.7219618806. The cubic root of 126443772 is about 501.9176650520.

The spelling of 126443772 in words is "one hundred twenty-six million, four hundred forty-three thousand, seven hundred seventy-two".