477020280 has 128 divisors (see below), whose sum is σ = 1603514880. Its totient is φ = 112504320.

The previous prime is 477020263. The next prime is 477020309. The reversal of 477020280 is 82020774.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43957 + ... + 53723.

It is an arithmetic number, because the mean of its divisors is an integer number (12527460).

Almost surely, 2^477020280 is an apocalyptic number.

477020280 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 477020280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801757440).

477020280 is an abundant number, since it is smaller than the sum of its proper divisors (1126494600).

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

477020280 is a wasteful number, since it uses less digits than its factorization.

477020280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9829 (or 9825 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 477020280 is about 21840.7939416130. The cubic root of 477020280 is about 781.3499961178.

The spelling of 477020280 in words is "four hundred seventy-seven million, twenty thousand, two hundred eighty".