42172626 has 8 divisors (see below), whose sum is σ = 84345264. Its totient is φ = 14057540.

The previous prime is 42172621. The next prime is 42172643. The reversal of 42172626 is 62627124.

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

42172626 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 42172593 and 42172602.

It is not an unprimeable number, because it can be changed into a prime (42172621) 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, 3514380 + ... + 3514391.

It is an arithmetic number, because the mean of its divisors is an integer number (10543158).

Almost surely, 2^42172626 is an apocalyptic number.

42172626 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42172626 is a wasteful number, since it uses less digits than its factorization.

42172626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7028776.

The product of its digits is 8064, while the sum is 30.

The square root of 42172626 is about 6494.0454263887. The cubic root of 42172626 is about 348.0782457165.

The spelling of 42172626 in words is "forty-two million, one hundred seventy-two thousand, six hundred twenty-six".