42691896 has 96 divisors (see below), whose sum is σ = 131891760. Its totient is φ = 12358656.

The previous prime is 42691889. The next prime is 42691897. The reversal of 42691896 is 69819624.

It is a happy number.

42691896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42691897) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 14571 + ... + 17253.

Almost surely, 2^42691896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42691896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65945880).

42691896 is an abundant number, since it is smaller than the sum of its proper divisors (89199864).

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

42691896 is a wasteful number, since it uses less digits than its factorization.

42691896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2725 (or 2718 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 42691896 is about 6533.9035805558. The cubic root of 42691896 is about 349.5010468633.

The spelling of 42691896 in words is "forty-two million, six hundred ninety-one thousand, eight hundred ninety-six".