1380925 has 24 divisors (see below), whose sum is σ = 2110976. Its totient is φ = 872640.

The previous prime is 1380913. The next prime is 1380931. The reversal of 1380925 is 5290831.

It is not a de Polignac number, because 1380925 - 2¹⁵ = 1348157 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1380893 and 1380902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1972 + ... + 2578.

2^1380925 is an apocalyptic number.

It is an amenable number.

1380925 is a deficient number, since it is larger than the sum of its proper divisors (730051).

1380925 is a wasteful number, since it uses less digits than its factorization.

1380925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1380925 is about 1175.1276526403. The cubic root of 1380925 is about 111.3584978634.

The spelling of 1380925 in words is "one million, three hundred eighty thousand, nine hundred twenty-five".