42131334 has 32 divisors (see below), whose sum is σ = 97194240. Its totient is φ = 11925792.

The previous prime is 42131281. The next prime is 42131347. The reversal of 42131334 is 43313124.

42131334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 42131334.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24 + ... + 9179.

It is an arithmetic number, because the mean of its divisors is an integer number (3037320).

Almost surely, 2^42131334 is an apocalyptic number.

42131334 is an abundant number, since it is smaller than the sum of its proper divisors (55062906).

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

42131334 is a wasteful number, since it uses less digits than its factorization.

42131334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9324.

The product of its digits is 864, while the sum is 21.

The square root of 42131334 is about 6490.8654276606. The cubic root of 42131334 is about 347.9646053313.

Adding to 42131334 its reverse (43313124), we get a palindrome (85444458).

The spelling of 42131334 in words is "forty-two million, one hundred thirty-one thousand, three hundred thirty-four".