1880401 has 2 divisors, whose sum is σ = 1880402. Its totient is φ = 1880400.

The previous prime is 1880381. The next prime is 1880413. The reversal of 1880401 is 1040881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1113025 + 767376 = 1055^2 + 876^2 .

It is an emirp because it is prime and its reverse (1040881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1880401 - 2⁵ = 1880369 is a prime.

It is not a weakly prime, because it can be changed into another prime (1880441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 940200 + 940201.

It is an arithmetic number, because the mean of its divisors is an integer number (940201).

2^1880401 is an apocalyptic number.

It is an amenable number.

1880401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1880401 is an equidigital number, since it uses as much as digits as its factorization.

1880401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 1880401 is about 1371.2771419374. The cubic root of 1880401 is about 123.4288903144.

The spelling of 1880401 in words is "one million, eight hundred eighty thousand, four hundred one".