618948 has 48 divisors (see below), whose sum is σ = 1753920. Its totient is φ = 187200.

The previous prime is 618941. The next prime is 618971. The reversal of 618948 is 849816.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (618941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 928 + ... + 1448.

It is an arithmetic number, because the mean of its divisors is an integer number (36540).

2⁶¹⁸⁹⁴⁸ 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 618948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (876960).

618948 is an abundant number, since it is smaller than the sum of its proper divisors (1134972).

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

618948 is a wasteful number, since it uses less digits than its factorization.

618948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545 (or 537 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 618948 is about 786.7324831224. The cubic root of 618948 is about 85.2219344438.

It can be divided in two parts, 61 and 8948, that added together give a palindrome (9009).

The spelling of 618948 in words is "six hundred eighteen thousand, nine hundred forty-eight".