42200031 has 16 divisors (see below), whose sum is σ = 58558464. Its totient is φ = 27010464.

The previous prime is 42200023. The next prime is 42200077. The reversal of 42200031 is 13000224.

It is not a de Polignac number, because 42200031 - 2³ = 42200023 is a prime.

It is a super-2 number, since 2×42200031² = 3561685232801922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42200131) 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, 4650 + ... + 10296.

It is an arithmetic number, because the mean of its divisors is an integer number (3659904).

Almost surely, 2^42200031 is an apocalyptic number.

42200031 is a deficient number, since it is larger than the sum of its proper divisors (16358433).

42200031 is a wasteful number, since it uses less digits than its factorization.

42200031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5750.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 42200031 is about 6496.1550935919. The cubic root of 42200031 is about 348.1536265161.

Adding to 42200031 its reverse (13000224), we get a palindrome (55200255).

The spelling of 42200031 in words is "forty-two million, two hundred thousand, thirty-one".