1380036 has 36 divisors (see below), whose sum is σ = 3747408. Its totient is φ = 394128.

The previous prime is 1380031. The next prime is 1380047. The reversal of 1380036 is 6300831.

It is a super-2 number, since 2×1380036² = 3808998722592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1379994 and 1380021.

It is not an unprimeable number, because it can be changed into a prime (1380031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 586 + ... + 1761.

2^1380036 is an apocalyptic number.

It is an amenable number.

1380036 is an abundant number, since it is smaller than the sum of its proper divisors (2367372).

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

1380036 is a wasteful number, since it uses less digits than its factorization.

1380036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368 (or 2359 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1380036 is about 1174.7493349647. The cubic root of 1380036 is about 111.3345962622.

Adding to 1380036 its reverse (6300831), we get a palindrome (7680867).

The spelling of 1380036 in words is "one million, three hundred eighty thousand, thirty-six".