1998010 has 64 divisors (see below), whose sum is σ = 4603392. Its totient is φ = 608256.

The previous prime is 1997999. The next prime is 1998019. The reversal of 1998010 is 108991.

It is a self number, because there is not a number n which added to its sum of digits gives 1998010.

It is not an unprimeable number, because it can be changed into a prime (1998019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27334 + ... + 27406.

It is an arithmetic number, because the mean of its divisors is an integer number (71928).

2^1998010 is an apocalyptic number.

1998010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1998010 is an abundant number, since it is smaller than the sum of its proper divisors (2605382).

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

1998010 is a wasteful number, since it uses less digits than its factorization.

1998010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 1998010 is about 1413.5098160253. The cubic root of 1998010 is about 125.9503037409.

The spelling of 1998010 in words is "one million, nine hundred ninety-eight thousand, ten".