197491952 has 30 divisors (see below), whose sum is σ = 445114368. Its totient is φ = 84639072.

The previous prime is 197491919. The next prime is 197491963. The reversal of 197491952 is 259194791.

It is a super-2 number, since 2×197491952² = 78006142209540608, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 197491897 and 197491906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125168 + ... + 126735.

Almost surely, 2^197491952 is an apocalyptic number.

It is an amenable number.

197491952 is an abundant number, since it is smaller than the sum of its proper divisors (247622416).

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

197491952 is a wasteful number, since it uses less digits than its factorization.

197491952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251925 (or 251912 counting only the distinct ones).

The product of its digits is 204120, while the sum is 47.

The square root of 197491952 is about 14053.1829846480. The cubic root of 197491952 is about 582.3487319269.

The spelling of 197491952 in words is "one hundred ninety-seven million, four hundred ninety-one thousand, nine hundred fifty-two".