618452 has 6 divisors (see below), whose sum is σ = 1082298. Its totient is φ = 309224.

The previous prime is 618439. The next prime is 618463. The reversal of 618452 is 254816.

It can be written as a sum of positive squares in only one way, i.e., 391876 + 226576 = 626^2 + 476^2 .

It is a congruent number.

It is an unprimeable number.

618452 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77303 + ... + 77310.

It is an arithmetic number, because the mean of its divisors is an integer number (180383).

2⁶¹⁸⁴⁵² is an apocalyptic number.

It is an amenable number.

618452 is a deficient number, since it is larger than the sum of its proper divisors (463846).

618452 is a wasteful number, since it uses less digits than its factorization.

618452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154617 (or 154615 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 618452 is about 786.4171920806. The cubic root of 618452 is about 85.1991638849.

The spelling of 618452 in words is "six hundred eighteen thousand, four hundred fifty-two".