42687322 has 4 divisors (see below), whose sum is σ = 64030986. Its totient is φ = 21343660.

The previous prime is 42687299. The next prime is 42687331. The reversal of 42687322 is 22378624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 32821441 + 9865881 = 5729^2 + 3141^2 .

It is a super-3 number, since 3×42687322³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10671829 + ... + 10671832.

Almost surely, 2^42687322 is an apocalyptic number.

42687322 is a deficient number, since it is larger than the sum of its proper divisors (21343664).

42687322 is a wasteful number, since it uses less digits than its factorization.

42687322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21343663.

The product of its digits is 32256, while the sum is 34.

The square root of 42687322 is about 6533.5535507104. The cubic root of 42687322 is about 349.4885645967.

The spelling of 42687322 in words is "forty-two million, six hundred eighty-seven thousand, three hundred twenty-two".