481278216 has 16 divisors (see below), whose sum is σ = 1203195600. Its totient is φ = 160426064.

The previous prime is 481278209. The next prime is 481278221. The reversal of 481278216 is 612872184.

It is a happy number.

It is a super-2 number, since 2×481278216² = 463257442392285312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10026606 + ... + 10026653.

It is an arithmetic number, because the mean of its divisors is an integer number (75199725).

Almost surely, 2^481278216 is an apocalyptic number.

It is an amenable number.

481278216 is an abundant number, since it is smaller than the sum of its proper divisors (721917384).

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

481278216 is a wasteful number, since it uses less digits than its factorization.

481278216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20053268 (or 20053264 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 481278216 is about 21938.0540613793. The cubic root of 481278216 is about 783.6679186747.

It can be divided in two parts, 4812 and 78216, that added together give a triangular number (83028 = T₄₀₇).

The spelling of 481278216 in words is "four hundred eighty-one million, two hundred seventy-eight thousand, two hundred sixteen".