42688346 has 4 divisors (see below), whose sum is σ = 64032522. Its totient is φ = 21344172.

The previous prime is 42688337. The next prime is 42688363. The reversal of 42688346 is 64388624.

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., 42315025 + 373321 = 6505^2 + 611^2 .

It is a super-3 number, since 3×42688346³ (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, 10672085 + ... + 10672088.

Almost surely, 2^42688346 is an apocalyptic number.

42688346 is a deficient number, since it is larger than the sum of its proper divisors (21344176).

42688346 is a wasteful number, since it uses less digits than its factorization.

42688346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21344175.

The product of its digits is 221184, while the sum is 41.

The square root of 42688346 is about 6533.6319149459. The cubic root of 42688346 is about 349.4913591300.

It can be divided in two parts, 42688 and 346, that added together give a palindrome (43034).

The spelling of 42688346 in words is "forty-two million, six hundred eighty-eight thousand, three hundred forty-six".