42687422 has 8 divisors (see below), whose sum is σ = 64079400. Its totient is φ = 21327624.

The previous prime is 42687409. The next prime is 42687427. The reversal of 42687422 is 22478624.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×42687422³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42687427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4397 + ... + 10232.

It is an arithmetic number, because the mean of its divisors is an integer number (8009925).

Almost surely, 2^42687422 is an apocalyptic number.

42687422 is a deficient number, since it is larger than the sum of its proper divisors (21391978).

42687422 is a wasteful number, since it uses less digits than its factorization.

42687422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16090.

The product of its digits is 43008, while the sum is 35.

The square root of 42687422 is about 6533.5612035092. The cubic root of 42687422 is about 349.4888375023.

The spelling of 42687422 in words is "forty-two million, six hundred eighty-seven thousand, four hundred twenty-two".