418616872 has 8 divisors (see below), whose sum is σ = 784906650. Its totient is φ = 209308432.

The previous prime is 418616833. The next prime is 418616879. The reversal of 418616872 is 278616814.

It can be written as a sum of positive squares in only one way, i.e., 401361156 + 17255716 = 20034^2 + 4154^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (418616879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26163547 + ... + 26163562.

Almost surely, 2^418616872 is an apocalyptic number.

It is an amenable number.

418616872 is a deficient number, since it is larger than the sum of its proper divisors (366289778).

418616872 is a wasteful number, since it uses less digits than its factorization.

418616872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52327115 (or 52327111 counting only the distinct ones).

The product of its digits is 129024, while the sum is 43.

The square root of 418616872 is about 20460.1288363490. The cubic root of 418616872 is about 748.0642656900.

The spelling of 418616872 in words is "four hundred eighteen million, six hundred sixteen thousand, eight hundred seventy-two".