418784481 has 12 divisors (see below), whose sum is σ = 610901460. Its totient is φ = 276424800.

The previous prime is 418784473. The next prime is 418784497. The reversal of 418784481 is 184487814.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 365421456 + 53363025 = 19116^2 + 7305^2 .

It is not a de Polignac number, because 418784481 - 2³ = 418784473 is a prime.

It is a super-2 number, since 2×418784481² = 350760883052878722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (418784381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229446 + ... + 231263.

It is an arithmetic number, because the mean of its divisors is an integer number (50908455).

Almost surely, 2^418784481 is an apocalyptic number.

It is an amenable number.

418784481 is a deficient number, since it is larger than the sum of its proper divisors (192116979).

418784481 is a wasteful number, since it uses less digits than its factorization.

418784481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460816 (or 460813 counting only the distinct ones).

The product of its digits is 229376, while the sum is 45.

The square root of 418784481 is about 20464.2244172605. The cubic root of 418784481 is about 748.1640909174.

The spelling of 418784481 in words is "four hundred eighteen million, seven hundred eighty-four thousand, four hundred eighty-one".