1860401 has 8 divisors (see below), whose sum is σ = 1983744. Its totient is φ = 1740640.

The previous prime is 1860377. The next prime is 1860407. The reversal of 1860401 is 1040681.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1860401 - 2⁶ = 1860337 is a prime.

It is a super-2 number, since 2×1860401² = 6922183761602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1860407) 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, 221 + ... + 1941.

It is an arithmetic number, because the mean of its divisors is an integer number (247968).

2^1860401 is an apocalyptic number.

It is an amenable number.

1860401 is a deficient number, since it is larger than the sum of its proper divisors (123343).

1860401 is a wasteful number, since it uses less digits than its factorization.

1860401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1860401 is about 1363.9651755085. The cubic root of 1860401 is about 122.9897318857.

The spelling of 1860401 in words is "one million, eight hundred sixty thousand, four hundred one".