1384880 has 40 divisors (see below), whose sum is σ = 3681312. Its totient is φ = 474624.

The previous prime is 1384879. The next prime is 1384909. The reversal of 1384880 is 884831.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1384880² = 3835785228800, which contains 22 as substring.

It is a nialpdrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677 + ... + 1796.

2^1384880 is an apocalyptic number.

1384880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1384880 is an abundant number, since it is smaller than the sum of its proper divisors (2296432).

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

1384880 is a wasteful number, since it uses less digits than its factorization.

1384880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493 (or 2487 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 1384880 is about 1176.8092453750. The cubic root of 1384880 is about 111.4647076061.

The spelling of 1384880 in words is "one million, three hundred eighty-four thousand, eight hundred eighty".