42623312 has 20 divisors (see below), whose sum is σ = 82950420. Its totient is φ = 21216768.

The previous prime is 42623299. The next prime is 42623351. The reversal of 42623312 is 21332624.

It can be written as a sum of positive squares in 2 ways, for example, as 35093776 + 7529536 = 5924^2 + 2744^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2153 + ... + 9480.

It is an arithmetic number, because the mean of its divisors is an integer number (4147521).

Almost surely, 2^42623312 is an apocalyptic number.

It is an amenable number.

42623312 is a deficient number, since it is larger than the sum of its proper divisors (40327108).

42623312 is a wasteful number, since it uses less digits than its factorization.

42623312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11870 (or 11864 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 42623312 is about 6528.6531535991. The cubic root of 42623312 is about 349.3137901906.

Adding to 42623312 its reverse (21332624), we get a palindrome (63955936).

The spelling of 42623312 in words is "forty-two million, six hundred twenty-three thousand, three hundred twelve".