42237429 has 16 divisors (see below), whose sum is σ = 61420800. Its totient is φ = 25661376.

The previous prime is 42237409. The next prime is 42237457. The reversal of 42237429 is 92473224.

It is not a de Polignac number, because 42237429 - 2⁷ = 42237301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42237429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42237409) 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, 3774 + ... + 9935.

It is an arithmetic number, because the mean of its divisors is an integer number (3838800).

Almost surely, 2^42237429 is an apocalyptic number.

It is an amenable number.

42237429 is a deficient number, since it is larger than the sum of its proper divisors (19183371).

42237429 is a wasteful number, since it uses less digits than its factorization.

42237429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13804.

The product of its digits is 24192, while the sum is 33.

The square root of 42237429 is about 6499.0329280594. The cubic root of 42237429 is about 348.2564416460.

The spelling of 42237429 in words is "forty-two million, two hundred thirty-seven thousand, four hundred twenty-nine".