618040212 has 24 divisors (see below), whose sum is σ = 1443472800. Its totient is φ = 205816416.

The previous prime is 618040187. The next prime is 618040217. The reversal of 618040212 is 212040816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618040217) 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, 11262 + ... + 36917.

It is an arithmetic number, because the mean of its divisors is an integer number (60144700).

Almost surely, 2^618040212 is an apocalyptic number.

It is an amenable number.

618040212 is an abundant number, since it is smaller than the sum of its proper divisors (825432588).

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

618040212 is a wasteful number, since it uses less digits than its factorization.

618040212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49255 (or 49253 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 618040212 is about 24860.4145580881. The cubic root of 618040212 is about 851.8025011153.

The spelling of 618040212 in words is "six hundred eighteen million, forty thousand, two hundred twelve".