17900052 has 24 divisors (see below), whose sum is σ = 43965600. Its totient is φ = 5652576.

The previous prime is 17900027. The next prime is 17900053. The reversal of 17900052 is 25000971.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 17899995 and 17900031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17900053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39027 + ... + 39482.

It is an arithmetic number, because the mean of its divisors is an integer number (1831900).

Almost surely, 2^17900052 is an apocalyptic number.

17900052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

17900052 is an abundant number, since it is smaller than the sum of its proper divisors (26065548).

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

17900052 is a wasteful number, since it uses less digits than its factorization.

17900052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78535 (or 78533 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 17900052 is about 4230.8453056097. The cubic root of 17900052 is about 261.5881687174.

The spelling of 17900052 in words is "seventeen million, nine hundred thousand, fifty-two".