42129263 has 16 divisors (see below), whose sum is σ = 47567520. Its totient is φ = 36979200.

The previous prime is 42129259. The next prime is 42129287. The reversal of 42129263 is 36292124.

It is a cyclic number.

It is not a de Polignac number, because 42129263 - 2² = 42129259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42129233) 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, 48731 + ... + 49587.

It is an arithmetic number, because the mean of its divisors is an integer number (2972970).

Almost surely, 2^42129263 is an apocalyptic number.

42129263 is a deficient number, since it is larger than the sum of its proper divisors (5438257).

42129263 is a wasteful number, since it uses less digits than its factorization.

42129263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018.

The product of its digits is 5184, while the sum is 29.

The square root of 42129263 is about 6490.7058938146. The cubic root of 42129263 is about 347.9589037435.

The spelling of 42129263 in words is "forty-two million, one hundred twenty-nine thousand, two hundred sixty-three".