197040 has 40 divisors (see below), whose sum is σ = 611568. Its totient is φ = 52480.
The previous prime is 197033. The next prime is 197059. The reversal of 197040 is 40791.
It is a tau number, because it is divible by the number of its divisors (40).
It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 196998 and 197016.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 197040.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171 + ... + 650.
2197040 is an apocalyptic number.
197040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
197040 is an abundant number, since it is smaller than the sum of its proper divisors (414528).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
197040 is a wasteful number, since it uses less digits than its factorization.
197040 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 837 (or 831 counting only the distinct ones).
The product of its (nonzero) digits is 252, while the sum is 21.
The square root of 197040 is about 443.8918787272. The cubic root of 197040 is about 58.1904165796.
The spelling of 197040 in words is "one hundred ninety-seven thousand, forty".
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