197525940 has 48 divisors (see below), whose sum is σ = 554422848. Its totient is φ = 52545024.

The previous prime is 197525927. The next prime is 197525947. The reversal of 197525940 is 49525791.

197525940 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 197525892 and 197525901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197525947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22179 + ... + 29781.

It is an arithmetic number, because the mean of its divisors is an integer number (11550476).

Almost surely, 2^197525940 is an apocalyptic number.

197525940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197525940 is an abundant number, since it is smaller than the sum of its proper divisors (356896908).

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

197525940 is a wasteful number, since it uses less digits than its factorization.

197525940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8048 (or 8046 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 42.

The square root of 197525940 is about 14054.3921960361. The cubic root of 197525940 is about 582.3821370575.

The spelling of 197525940 in words is "one hundred ninety-seven million, five hundred twenty-five thousand, nine hundred forty".