17829990 has 32 divisors (see below), whose sum is σ = 47547360. Its totient is φ = 4754592.

The previous prime is 17829979. The next prime is 17830009. The reversal of 17829990 is 9992871.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 32749 + ... + 33288.

It is an arithmetic number, because the mean of its divisors is an integer number (1485855).

Almost surely, 2^17829990 is an apocalyptic number.

17829990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

17829990 is an abundant number, since it is smaller than the sum of its proper divisors (29717370).

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

17829990 is a wasteful number, since it uses less digits than its factorization.

17829990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66053 (or 66047 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 17829990 is about 4222.5572820271. The cubic root of 17829990 is about 261.2464312753.

The spelling of 17829990 in words is "seventeen million, eight hundred twenty-nine thousand, nine hundred ninety".