126742434 has 32 divisors (see below), whose sum is σ = 311982720. Its totient is φ = 33426432.

The previous prime is 126742433. The next prime is 126742453. The reversal of 126742434 is 434247621.

It is a junction number, because it is equal to n+sod(n) for n = 126742395 and 126742404.

It is not an unprimeable number, because it can be changed into a prime (126742433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115519 + ... + 116610.

It is an arithmetic number, because the mean of its divisors is an integer number (9749460).

Almost surely, 2^126742434 is an apocalyptic number.

126742434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

126742434 is an abundant number, since it is smaller than the sum of its proper divisors (185240286).

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

126742434 is a wasteful number, since it uses less digits than its factorization.

126742434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232154.

The product of its digits is 32256, while the sum is 33.

The square root of 126742434 is about 11257.9942263265. The cubic root of 126742434 is about 502.3125332242.

The spelling of 126742434 in words is "one hundred twenty-six million, seven hundred forty-two thousand, four hundred thirty-four".