197473040 has 20 divisors (see below), whose sum is σ = 459125004. Its totient is φ = 78989184.

The previous prime is 197473039. The next prime is 197473049. The reversal of 197473040 is 40374791.

It can be written as a sum of positive squares in 2 ways, for example, as 66324736 + 131148304 = 8144^2 + 11452^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (197473049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1234127 + ... + 1234286.

Almost surely, 2^197473040 is an apocalyptic number.

197473040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197473040 is an abundant number, since it is smaller than the sum of its proper divisors (261651964).

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

197473040 is a wasteful number, since it uses less digits than its factorization.

197473040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468426 (or 2468420 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 197473040 is about 14052.5100960647. The cubic root of 197473040 is about 582.3301425942.

The spelling of 197473040 in words is "one hundred ninety-seven million, four hundred seventy-three thousand, forty".