473565640 has 32 divisors (see below), whose sum is σ = 1076516280. Its totient is φ = 187471872.

The previous prime is 473565577. The next prime is 473565643. The reversal of 473565640 is 46565374.

It can be written as a sum of positive squares in 4 ways, for example, as 243921924 + 229643716 = 15618^2 + 15154^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 473565593 and 473565602.

It is not an unprimeable number, because it can be changed into a prime (473565643) 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, 57147 + ... + 64906.

Almost surely, 2^473565640 is an apocalyptic number.

473565640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

473565640 is an abundant number, since it is smaller than the sum of its proper divisors (602950640).

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

473565640 is a wasteful number, since it uses less digits than its factorization.

473565640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122161 (or 122157 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 40.

The square root of 473565640 is about 21761.5633629572. The cubic root of 473565640 is about 779.4592131406.

The spelling of 473565640 in words is "four hundred seventy-three million, five hundred sixty-five thousand, six hundred forty".