475206440 has 64 divisors (see below), whose sum is σ = 1168680960. Its totient is φ = 173122560.

The previous prime is 475206419. The next prime is 475206449. The reversal of 475206440 is 44602574.

It is a junction number, because it is equal to n+sod(n) for n = 475206397 and 475206406.

It is not an unprimeable number, because it can be changed into a prime (475206449) 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, 9809 + ... + 32351.

It is an arithmetic number, because the mean of its divisors is an integer number (18260640).

Almost surely, 2^475206440 is an apocalyptic number.

475206440 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 475206440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (584340480).

475206440 is an abundant number, since it is smaller than the sum of its proper divisors (693474520).

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

475206440 is a wasteful number, since it uses less digits than its factorization.

475206440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22602 (or 22598 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 475206440 is about 21799.2302616400. The cubic root of 475206440 is about 780.3583932670.

The spelling of 475206440 in words is "four hundred seventy-five million, two hundred six thousand, four hundred forty".