1618612 has 12 divisors (see below), whose sum is σ = 2858436. Its totient is φ = 801920.

The previous prime is 1618601. The next prime is 1618613. The reversal of 1618612 is 2168161.

It can be written as a sum of positive squares in 2 ways, for example, as 646416 + 972196 = 804^2 + 986^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1618613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1339 + ... + 2242.

It is an arithmetic number, because the mean of its divisors is an integer number (238203).

2^1618612 is an apocalyptic number.

It is an amenable number.

1618612 is a deficient number, since it is larger than the sum of its proper divisors (1239824).

1618612 is a wasteful number, since it uses less digits than its factorization.

1618612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3698 (or 3696 counting only the distinct ones).

The product of its digits is 576, while the sum is 25.

The square root of 1618612 is about 1272.2468313971. The cubic root of 1618612 is about 117.4124774517.

It can be divided in two parts, 16 and 18612, that multiplied together give a palindrome (297792).

The spelling of 1618612 in words is "one million, six hundred eighteen thousand, six hundred twelve".