198514772 has 6 divisors (see below), whose sum is σ = 347400858. Its totient is φ = 99257384.

The previous prime is 198514751. The next prime is 198514777. The reversal of 198514772 is 277415891.

It can be written as a sum of positive squares in only one way, i.e., 179452816 + 19061956 = 13396^2 + 4366^2 .

It is a super-2 number, since 2×198514772² = 78816229404423968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198514777) by changing a digit.

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 as a sum of consecutive naturals, namely, 24814343 + ... + 24814350.

It is an arithmetic number, because the mean of its divisors is an integer number (57900143).

Almost surely, 2^198514772 is an apocalyptic number.

It is an amenable number.

198514772 is a deficient number, since it is larger than the sum of its proper divisors (148886086).

198514772 is a wasteful number, since it uses less digits than its factorization.

198514772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49628697 (or 49628695 counting only the distinct ones).

The product of its digits is 141120, while the sum is 44.

The square root of 198514772 is about 14089.5270325160. The cubic root of 198514772 is about 583.3523383921.

The spelling of 198514772 in words is "one hundred ninety-eight million, five hundred fourteen thousand, seven hundred seventy-two".