18484628 has 6 divisors (see below), whose sum is σ = 32348106. Its totient is φ = 9242312.

The previous prime is 18484621. The next prime is 18484643. The reversal of 18484628 is 82648481.

It can be written as a sum of positive squares in only one way, i.e., 17825284 + 659344 = 4222^2 + 812^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18484621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2310575 + ... + 2310582.

It is an arithmetic number, because the mean of its divisors is an integer number (5391351).

Almost surely, 2^18484628 is an apocalyptic number.

It is an amenable number.

18484628 is a deficient number, since it is larger than the sum of its proper divisors (13863478).

18484628 is a wasteful number, since it uses less digits than its factorization.

18484628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4621161 (or 4621159 counting only the distinct ones).

The product of its digits is 98304, while the sum is 41.

The square root of 18484628 is about 4299.3753034598. The cubic root of 18484628 is about 264.4053499054.

The spelling of 18484628 in words is "eighteen million, four hundred eighty-four thousand, six hundred twenty-eight".