1880388 has 48 divisors (see below), whose sum is σ = 5093760. Its totient is φ = 598752.

The previous prime is 1880381. The next prime is 1880401. The reversal of 1880388 is 8830881.

1880388 = 17³ + 18³ + ... + 52³.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1880381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2106 + ... + 2862.

It is an arithmetic number, because the mean of its divisors is an integer number (106120).

2^1880388 is an apocalyptic number.

1880388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1880388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2546880).

1880388 is an abundant number, since it is smaller than the sum of its proper divisors (3213372).

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

1880388 is a wasteful number, since it uses less digits than its factorization.

1880388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793 (or 785 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 1880388 is about 1371.2724018225. The cubic root of 1880388 is about 123.4286058752.

The spelling of 1880388 in words is "one million, eight hundred eighty thousand, three hundred eighty-eight".