477221436 has 48 divisors (see below), whose sum is σ = 1255726080. Its totient is φ = 156697200.

The previous prime is 477221431. The next prime is 477221489. The reversal of 477221436 is 634122774.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 477221436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (477221431) 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, 25740 + ... + 40211.

It is an arithmetic number, because the mean of its divisors is an integer number (26160960).

Almost surely, 2^477221436 is an apocalyptic number.

It is an amenable number.

477221436 is an abundant number, since it is smaller than the sum of its proper divisors (778504644).

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

477221436 is a wasteful number, since it uses less digits than its factorization.

477221436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66031 (or 66023 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 477221436 is about 21845.3985086105. The cubic root of 477221436 is about 781.4598105629.

The spelling of 477221436 in words is "four hundred seventy-seven million, two hundred twenty-one thousand, four hundred thirty-six".