42686792 has 8 divisors (see below), whose sum is σ = 80037750. Its totient is φ = 21343392.

The previous prime is 42686759. The next prime is 42686801. The reversal of 42686792 is 29768624.

42686792 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in only one way, i.e., 31967716 + 10719076 = 5654^2 + 3274^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×42686792³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2667917 + ... + 2667932.

Almost surely, 2^42686792 is an apocalyptic number.

It is an amenable number.

42686792 is a deficient number, since it is larger than the sum of its proper divisors (37350958).

42686792 is a wasteful number, since it uses less digits than its factorization.

42686792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5335855 (or 5335851 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 42686792 is about 6533.5129907271. The cubic root of 42686792 is about 349.4871181899.

It can be divided in two parts, 4268679 and 2, that multiplied together give a palindrome (8537358).

The spelling of 42686792 in words is "forty-two million, six hundred eighty-six thousand, seven hundred ninety-two".