198955630 has 16 divisors (see below), whose sum is σ = 358517664. Its totient is φ = 79493920.

The previous prime is 198955621. The next prime is 198955639. The reversal of 198955630 is 36559891.

It is an interprime number because it is at equal distance from previous prime (198955621) and next prime (198955639).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198955639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1162 + ... + 19981.

It is an arithmetic number, because the mean of its divisors is an integer number (22407354).

Almost surely, 2^198955630 is an apocalyptic number.

198955630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198955630 is a deficient number, since it is larger than the sum of its proper divisors (159562034).

198955630 is a wasteful number, since it uses less digits than its factorization.

198955630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22091.

The product of its (nonzero) digits is 291600, while the sum is 46.

The square root of 198955630 is about 14105.1632390412. The cubic root of 198955630 is about 583.7838518764.

The spelling of 198955630 in words is "one hundred ninety-eight million, nine hundred fifty-five thousand, six hundred thirty".