477789140 has 24 divisors (see below), whose sum is σ = 1030476552. Its totient is φ = 185950080.

The previous prime is 477789121. The next prime is 477789163. The reversal of 477789140 is 41987774.

It can be written as a sum of positive squares in 4 ways, for example, as 77228944 + 400560196 = 8788^2 + 20014^2 .

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322091 + ... + 323570.

It is an arithmetic number, because the mean of its divisors is an integer number (42936523).

Almost surely, 2^477789140 is an apocalyptic number.

It is an amenable number.

477789140 is an abundant number, since it is smaller than the sum of its proper divisors (552687412).

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

477789140 is a wasteful number, since it uses less digits than its factorization.

477789140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645707 (or 645705 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 47.

The square root of 477789140 is about 21858.3883211915. The cubic root of 477789140 is about 781.7695633844.

The spelling of 477789140 in words is "four hundred seventy-seven million, seven hundred eighty-nine thousand, one hundred forty".