1380972 has 24 divisors (see below), whose sum is σ = 3247216. Its totient is φ = 456768.

The previous prime is 1380971. The next prime is 1380983. The reversal of 1380972 is 2790831.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1380971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1518 + ... + 2250.

2^1380972 is an apocalyptic number.

1380972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1380972 is an abundant number, since it is smaller than the sum of its proper divisors (1866244).

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

1380972 is a wasteful number, since it uses less digits than its factorization.

1380972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897 (or 895 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 1380972 is about 1175.1476502976. The cubic root of 1380972 is about 111.3597612171.

The spelling of 1380972 in words is "one million, three hundred eighty thousand, nine hundred seventy-two".