618464 has 48 divisors (see below), whose sum is σ = 1524096. Its totient is φ = 240000.

The previous prime is 618463. The next prime is 618509. The reversal of 618464 is 464816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2339 + ... + 2589.

It is an arithmetic number, because the mean of its divisors is an integer number (31752).

2⁶¹⁸⁴⁶⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (762048).

618464 is an abundant number, since it is smaller than the sum of its proper divisors (905632).

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

618464 is a wasteful number, since it uses less digits than its factorization.

618464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279 (or 271 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 618464 is about 786.4248215818. The cubic root of 618464 is about 85.1997149292.

The spelling of 618464 in words is "six hundred eighteen thousand, four hundred sixty-four".