472778280 has 96 divisors (see below), whose sum is σ = 1654740360. Its totient is φ = 116375040.

The previous prime is 472778263. The next prime is 472778281. The reversal of 472778280 is 82877274.

It can be written as a sum of positive squares in 4 ways, for example, as 135908964 + 336869316 = 11658^2 + 18354^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (472778281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45831 + ... + 55190.

Almost surely, 2^472778280 is an apocalyptic number.

472778280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

472778280 is an abundant number, since it is smaller than the sum of its proper divisors (1181962080).

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

472778280 is a wasteful number, since it uses less digits than its factorization.

472778280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101051 (or 101044 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 45.

The square root of 472778280 is about 21743.4652252119. The cubic root of 472778280 is about 779.0269918575.

The spelling of 472778280 in words is "four hundred seventy-two million, seven hundred seventy-eight thousand, two hundred eighty".