473623640 has 128 divisors (see below), whose sum is σ = 1293926400. Its totient is φ = 152409600.

The previous prime is 473623607. The next prime is 473623649. The reversal of 473623640 is 46326374.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 473623640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (473623649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 675290 + ... + 675990.

It is an arithmetic number, because the mean of its divisors is an integer number (10108800).

Almost surely, 2^473623640 is an apocalyptic number.

473623640 is a gapful number since it is divisible by the number (40) 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 473623640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (646963200).

473623640 is an abundant number, since it is smaller than the sum of its proper divisors (820302760).

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

473623640 is a wasteful number, since it uses less digits than its factorization.

473623640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 861 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 35.

The square root of 473623640 is about 21762.8959470012. The cubic root of 473623640 is about 779.4910332904.

The spelling of 473623640 in words is "four hundred seventy-three million, six hundred twenty-three thousand, six hundred forty".