42688344 has 32 divisors (see below), whose sum is σ = 106881840. Its totient is φ = 14208000.

The previous prime is 42688337. The next prime is 42688363. The reversal of 42688344 is 44388624.

It is a super-3 number, since 3×42688344³ (a number of 24 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28084 + ... + 29564.

Almost surely, 2^42688344 is an apocalyptic number.

It is an amenable number.

42688344 is an abundant number, since it is smaller than the sum of its proper divisors (64193496).

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

42688344 is a wasteful number, since it uses less digits than its factorization.

42688344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2691 (or 2687 counting only the distinct ones).

The product of its digits is 147456, while the sum is 39.

The square root of 42688344 is about 6533.6317618917. The cubic root of 42688344 is about 349.4913536720.

The spelling of 42688344 in words is "forty-two million, six hundred eighty-eight thousand, three hundred forty-four".