197490452 has 12 divisors (see below), whose sum is σ = 345916116. Its totient is φ = 98657280.

The previous prime is 197490421. The next prime is 197490463. The reversal of 197490452 is 254094791.

It can be written as a sum of positive squares in 2 ways, for example, as 73034116 + 124456336 = 8546^2 + 11156^2 .

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, 16799 + ... + 26022.

It is an arithmetic number, because the mean of its divisors is an integer number (28826343).

Almost surely, 2^197490452 is an apocalyptic number.

It is an amenable number.

197490452 is a deficient number, since it is larger than the sum of its proper divisors (148425664).

197490452 is a wasteful number, since it uses less digits than its factorization.

197490452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43978 (or 43976 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 197490452 is about 14053.1296158543. The cubic root of 197490452 is about 582.3472575625.

The spelling of 197490452 in words is "one hundred ninety-seven million, four hundred ninety thousand, four hundred fifty-two".