1477221120 has 432 divisors, whose sum is σ = 5710854240. Its totient is φ = 350355456.

The previous prime is 1477221113. The next prime is 1477221121. The reversal of 1477221120 is 211227741.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1477221121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3720762 + ... + 3721158.

It is an arithmetic number, because the mean of its divisors is an integer number (13219570).

Almost surely, 2^1477221120 is an apocalyptic number.

1477221120 is a gapful number since it is divisible by the number (10) 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 1477221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2855427120).

1477221120 is an abundant number, since it is smaller than the sum of its proper divisors (4233633120).

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

1477221120 is a wasteful number, since it uses less digits than its factorization.

1477221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 1477221120 is about 38434.6343809851. The cubic root of 1477221120 is about 1138.8901479194.

Adding to 1477221120 its reverse (211227741), we get a palindrome (1688448861).

The spelling of 1477221120 in words is "one billion, four hundred seventy-seven million, two hundred twenty-one thousand, one hundred twenty".