618838934 has 36 divisors (see below), whose sum is σ = 1099508796. Its totient is φ = 260407224.

The previous prime is 618838933. The next prime is 618838937. The reversal of 618838934 is 439838816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618838933) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2015609 + ... + 2015915.

It is an arithmetic number, because the mean of its divisors is an integer number (30541911).

Almost surely, 2^618838934 is an apocalyptic number.

618838934 is a deficient number, since it is larger than the sum of its proper divisors (480669862).

618838934 is an equidigital number, since it uses as much as digits as its factorization.

618838934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697 (or 383 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The square root of 618838934 is about 24876.4735040962. The cubic root of 618838934 is about 852.1692844358.

The spelling of 618838934 in words is "six hundred eighteen million, eight hundred thirty-eight thousand, nine hundred thirty-four".