4142729826 has 32 divisors (see below), whose sum is σ = 9503040000. Its totient is φ = 1336363920.

The previous prime is 4142729821. The next prime is 4142729849. The reversal of 4142729826 is 6289272414.

It is a super-2 number, since 2×4142729826² = 34324420822459980552, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4142729821) 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, 1235701 + ... + 1239048.

It is an arithmetic number, because the mean of its divisors is an integer number (296970000).

Almost surely, 2^4142729826 is an apocalyptic number.

4142729826 is an abundant number, since it is smaller than the sum of its proper divisors (5360310174).

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

4142729826 is a wasteful number, since it uses less digits than its factorization.

4142729826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474791 (or 2474785 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 4142729826 is about 64364.0414051200. The cubic root of 4142729826 is about 1606.0616192426.

It can be divided in two parts, 41427 and 29826, that added together give a triangular number (71253 = T₃₇₇).

The spelling of 4142729826 in words is "four billion, one hundred forty-two million, seven hundred twenty-nine thousand, eight hundred twenty-six".