197453980 has 24 divisors (see below), whose sum is σ = 439045488. Its totient is φ = 74335488.

The previous prime is 197453959. The next prime is 197453981. The reversal of 197453980 is 89354791.

It is a happy number.

197453980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 197453980.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197453981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290034 + ... + 290713.

It is an arithmetic number, because the mean of its divisors is an integer number (18293562).

Almost surely, 2^197453980 is an apocalyptic number.

197453980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197453980 is an abundant number, since it is smaller than the sum of its proper divisors (241591508).

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

197453980 is a wasteful number, since it uses less digits than its factorization.

197453980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580773 (or 580771 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 197453980 is about 14051.8319090430. The cubic root of 197453980 is about 582.3114065858.

The spelling of 197453980 in words is "one hundred ninety-seven million, four hundred fifty-three thousand, nine hundred eighty".