1618536 has 32 divisors (see below), whose sum is σ = 4285440. Its totient is φ = 507648.

The previous prime is 1618531. The next prime is 1618537. The reversal of 1618536 is 6358161.

It is not an unprimeable number, because it can be changed into a prime (1618531) 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, 1576 + ... + 2391.

It is an arithmetic number, because the mean of its divisors is an integer number (133920).

2^1618536 is an apocalyptic number.

It is an amenable number.

1618536 is an abundant number, since it is smaller than the sum of its proper divisors (2666904).

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

1618536 is a wasteful number, since it uses less digits than its factorization.

1618536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993 (or 3989 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 1618536 is about 1272.2169626286. The cubic root of 1618536 is about 117.4106397685.

It can be divided in two parts, 16185 and 36, that multiplied together give a triangular number (582660 = T₁₀₇₉).

The spelling of 1618536 in words is "one million, six hundred eighteen thousand, five hundred thirty-six".