197265040 has 80 divisors (see below), whose sum is σ = 528359040. Its totient is φ = 67092480.

The previous prime is 197265017. The next prime is 197265071. The reversal of 197265040 is 40562791.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 197264987 and 197265005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72016 + ... + 74704.

It is an arithmetic number, because the mean of its divisors is an integer number (6604488).

Almost surely, 2^197265040 is an apocalyptic number.

197265040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197265040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264179520).

197265040 is an abundant number, since it is smaller than the sum of its proper divisors (331094000).

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

197265040 is a wasteful number, since it uses less digits than its factorization.

197265040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840 (or 2834 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 197265040 is about 14045.1073331605. The cubic root of 197265040 is about 582.1256130345.

The spelling of 197265040 in words is "one hundred ninety-seven million, two hundred sixty-five thousand, forty".