1506636 has 18 divisors (see below), whose sum is σ = 3808532. Its totient is φ = 502200.

The previous prime is 1506623. The next prime is 1506641. The reversal of 1506636 is 6366051.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20890 + ... + 20961.

2^1506636 is an apocalyptic number.

It is an amenable number.

1506636 is an abundant number, since it is smaller than the sum of its proper divisors (2301896).

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

1506636 is a wasteful number, since it uses less digits than its factorization.

1506636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41861 (or 41856 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 1506636 is about 1227.4510173526. The cubic root of 1506636 is about 114.6399831247.

It can be divided in two parts, 150 and 6636, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 1506636 in words is "one million, five hundred six thousand, six hundred thirty-six".