618970368 has 72 divisors (see below), whose sum is σ = 1651372128. Its totient is φ = 205821952.

The previous prime is 618970361. The next prime is 618970369. The reversal of 618970368 is 863079816.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618970361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450130 + ... + 451502.

It is an arithmetic number, because the mean of its divisors is an integer number (22935724).

Almost surely, 2^618970368 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 618970368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (825686064).

618970368 is an abundant number, since it is smaller than the sum of its proper divisors (1032401760).

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

618970368 is a wasteful number, since it uses less digits than its factorization.

618970368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979 (or 1965 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 618970368 is about 24879.1150968036. The cubic root of 618970368 is about 852.2296103586.

The spelling of 618970368 in words is "six hundred eighteen million, nine hundred seventy thousand, three hundred sixty-eight".