17442012 has 24 divisors (see below), whose sum is σ = 46512256. Its totient is φ = 4983408.

The previous prime is 17442001. The next prime is 17442013. The reversal of 17442012 is 21024471.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 17442012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17442013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103738 + ... + 103905.

Almost surely, 2^17442012 is an apocalyptic number.

17442012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

17442012 is an abundant number, since it is smaller than the sum of its proper divisors (29070244).

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

17442012 is a wasteful number, since it uses less digits than its factorization.

17442012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207657 (or 207655 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 17442012 is about 4176.3634899276. The cubic root of 17442012 is about 259.3376236267.

Adding to 17442012 its reverse (21024471), we get a palindrome (38466483).

The spelling of 17442012 in words is "seventeen million, four hundred forty-two thousand, twelve".