618901344 has 48 divisors (see below), whose sum is σ = 1805131440. Its totient is φ = 206300160.

The previous prime is 618901321. The next prime is 618901397. The reversal of 618901344 is 443109816.

618901344 is a `hidden beast` number, since 618 + 9 + 0 + 1 + 34 + 4 = 666.

618901344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a junction number, because it is equal to n+sod(n) for n = 618901299 and 618901308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357297 + ... + 359024.

It is an arithmetic number, because the mean of its divisors is an integer number (37606905).

Almost surely, 2^618901344 is an apocalyptic number.

It is an amenable number.

618901344 is an abundant number, since it is smaller than the sum of its proper divisors (1186230096).

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

618901344 is a wasteful number, since it uses less digits than its factorization.

618901344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716340 (or 716326 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 618901344 is about 24877.7278705271. The cubic root of 618901344 is about 852.1979306065.

The spelling of 618901344 in words is "six hundred eighteen million, nine hundred one thousand, three hundred forty-four".