1630198 has 8 divisors (see below), whose sum is σ = 2589192. Its totient is φ = 767136.

The previous prime is 1630193. The next prime is 1630199. The reversal of 1630198 is 8910361.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23940 + ... + 24007.

It is an arithmetic number, because the mean of its divisors is an integer number (323649).

2^1630198 is an apocalyptic number.

1630198 is a deficient number, since it is larger than the sum of its proper divisors (958994).

1630198 is a wasteful number, since it uses less digits than its factorization.

1630198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47966.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1630198 is about 1276.7920739102. The cubic root of 1630198 is about 117.6919572453.

The spelling of 1630198 in words is "one million, six hundred thirty thousand, one hundred ninety-eight".