1618196 has 24 divisors (see below), whose sum is σ = 3061800. Its totient is φ = 745472.

The previous prime is 1618189. The next prime is 1618207. The reversal of 1618196 is 6918161.

It can be written as a sum of positive squares in 4 ways, for example, as 688900 + 929296 = 830^2 + 964^2 .

It is an Ulam number.

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, 3380 + ... + 3828.

It is an arithmetic number, because the mean of its divisors is an integer number (127575).

2^1618196 is an apocalyptic number.

It is an amenable number.

1618196 is a deficient number, since it is larger than the sum of its proper divisors (1443604).

1618196 is a wasteful number, since it uses less digits than its factorization.

1618196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 521 counting only the distinct ones).

The product of its digits is 2592, while the sum is 32.

The square root of 1618196 is about 1272.0833306038. The cubic root of 1618196 is about 117.4024178501.

The spelling of 1618196 in words is "one million, six hundred eighteen thousand, one hundred ninety-six".