1384920 has 48 divisors (see below), whose sum is σ = 4502160. Its totient is φ = 369216.

The previous prime is 1384919. The next prime is 1384921. The reversal of 1384920 is 294831.

It is an interprime number because it is at equal distance from previous prime (1384919) and next prime (1384921).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1564 + ... + 2283.

It is an arithmetic number, because the mean of its divisors is an integer number (93795).

2^1384920 is an apocalyptic number.

1384920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1384920 is an abundant number, since it is smaller than the sum of its proper divisors (3117240).

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

1384920 is a wasteful number, since it uses less digits than its factorization.

1384920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3864 (or 3857 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1384920 is about 1176.8262403601. The cubic root of 1384920 is about 111.4657807545.

It can be divided in two parts, 1384 and 920, that added together give a square (2304 = 48²).

The spelling of 1384920 in words is "one million, three hundred eighty-four thousand, nine hundred twenty".