1380236 has 48 divisors (see below), whose sum is σ = 3010560. Its totient is φ = 544320.

The previous prime is 1380233. The next prime is 1380241. The reversal of 1380236 is 6320831.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380233) 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, 10805 + ... + 10931.

It is an arithmetic number, because the mean of its divisors is an integer number (62720).

2^1380236 is an apocalyptic number.

It is an amenable number.

1380236 is an abundant number, since it is smaller than the sum of its proper divisors (1630324).

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

1380236 is a wasteful number, since it uses less digits than its factorization.

1380236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1380236 is about 1174.8344564235. The cubic root of 1380236 is about 111.3399743450.

The spelling of 1380236 in words is "one million, three hundred eighty thousand, two hundred thirty-six".