1980598 has 8 divisors (see below), whose sum is σ = 3127320. Its totient is φ = 938160.

The previous prime is 1980581. The next prime is 1980607. The reversal of 1980598 is 8950891.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1980598.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26023 + ... + 26098.

It is an arithmetic number, because the mean of its divisors is an integer number (390915).

2^1980598 is an apocalyptic number.

1980598 is a deficient number, since it is larger than the sum of its proper divisors (1146722).

1980598 is a wasteful number, since it uses less digits than its factorization.

1980598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52142.

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 1980598 is about 1407.3372019527. The cubic root of 1980598 is about 125.5833639237.

The spelling of 1980598 in words is "one million, nine hundred eighty thousand, five hundred ninety-eight".