1290036 has 48 divisors (see below), whose sum is σ = 3407040. Its totient is φ = 376320.

The previous prime is 1290031. The next prime is 1290049. The reversal of 1290036 is 6300921.

It is a junction number, because it is equal to n+sod(n) for n = 1289994 and 1290021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3660 + ... + 3996.

It is an arithmetic number, because the mean of its divisors is an integer number (70980).

2^1290036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1290036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1703520).

1290036 is an abundant number, since it is smaller than the sum of its proper divisors (2117004).

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

1290036 is a wasteful number, since it uses less digits than its factorization.

1290036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1290036 is about 1135.7975171658. The cubic root of 1290036 is about 108.8597359752.

Adding to 1290036 its reverse (6300921), we get a palindrome (7590957).

The spelling of 1290036 in words is "one million, two hundred ninety thousand, thirty-six".