1618396 has 12 divisors (see below), whose sum is σ = 3050152. Its totient is φ = 746928.

The previous prime is 1618387. The next prime is 1618399. The reversal of 1618396 is 6938161.

It is a super-2 number, since 2×1618396² = 5238411225632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1618399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15510 + ... + 15613.

2^1618396 is an apocalyptic number.

It is an amenable number.

1618396 is a deficient number, since it is larger than the sum of its proper divisors (1431756).

1618396 is a wasteful number, since it uses less digits than its factorization.

1618396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31140 (or 31138 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 1618396 is about 1272.1619393772. The cubic root of 1618396 is about 117.4072544121.

The spelling of 1618396 in words is "one million, six hundred eighteen thousand, three hundred ninety-six".