17980402 has 8 divisors (see below), whose sum is σ = 29422512. Its totient is φ = 8172900.

The previous prime is 17980381. The next prime is 17980423. The reversal of 17980402 is 20408971.

It is an interprime number because it is at equal distance from previous prime (17980381) and next prime (17980423).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408624 + ... + 408667.

It is an arithmetic number, because the mean of its divisors is an integer number (3677814).

Almost surely, 2^17980402 is an apocalyptic number.

17980402 is a deficient number, since it is larger than the sum of its proper divisors (11442110).

17980402 is a wasteful number, since it uses less digits than its factorization.

17980402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817304.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 17980402 is about 4240.3304116543. The cubic root of 17980402 is about 261.9789913811.

The spelling of 17980402 in words is "seventeen million, nine hundred eighty thousand, four hundred two".