472820778 has 12 divisors (see below), whose sum is σ = 1024445058. Its totient is φ = 157606920.

The previous prime is 472820759. The next prime is 472820801. The reversal of 472820778 is 877028274.

It can be written as a sum of positive squares in only one way, i.e., 447449409 + 25371369 = 21153^2 + 5037^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13133893 + ... + 13133928.

Almost surely, 2^472820778 is an apocalyptic number.

472820778 is an abundant number, since it is smaller than the sum of its proper divisors (551624280).

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

472820778 is a wasteful number, since it uses less digits than its factorization.

472820778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26267829 (or 26267826 counting only the distinct ones).

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

The square root of 472820778 is about 21744.4424623856. The cubic root of 472820778 is about 779.0503333818.

The spelling of 472820778 in words is "four hundred seventy-two million, eight hundred twenty thousand, seven hundred seventy-eight".