126429732 has 144 divisors (see below), whose sum is σ = 385257600. Its totient is φ = 34444800.

The previous prime is 126429707. The next prime is 126429739. The reversal of 126429732 is 237924621.

126429732 is a `hidden beast` number, since 1 + 2 + 642 + 9 + 7 + 3 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (126429739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 210769 + ... + 211367.

It is an arithmetic number, because the mean of its divisors is an integer number (2675400).

Almost surely, 2^126429732 is an apocalyptic number.

126429732 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 126429732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192628800).

126429732 is an abundant number, since it is smaller than the sum of its proper divisors (258827868).

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

126429732 is a wasteful number, since it uses less digits than its factorization.

126429732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 669 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 126429732 is about 11244.0976516571. The cubic root of 126429732 is about 501.8990871373.

The spelling of 126429732 in words is "one hundred twenty-six million, four hundred twenty-nine thousand, seven hundred thirty-two".