1380915 has 32 divisors (see below), whose sum is σ = 2514240. Its totient is φ = 718848.

The previous prime is 1380913. The next prime is 1380931. The reversal of 1380915 is 5190831.

It is not a de Polignac number, because 1380915 - 2¹ = 1380913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1380913) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7059 + ... + 7251.

It is an arithmetic number, because the mean of its divisors is an integer number (78570).

2^1380915 is an apocalyptic number.

1380915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1380915 is a deficient number, since it is larger than the sum of its proper divisors (1133325).

1380915 is a wasteful number, since it uses less digits than its factorization.

1380915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 1380915 is about 1175.1233977757. The cubic root of 1380915 is about 111.3582290611.

It can be divided in two parts, 13809 and 15, that added together give a cube (13824 = 24³).

The spelling of 1380915 in words is "one million, three hundred eighty thousand, nine hundred fifteen".