1840000401 has 32 divisors (see below), whose sum is σ = 2835155840. Its totient is φ = 1178452800.

The previous prime is 1840000399. The next prime is 1840000411. The reversal of 1840000401 is 1040000481.

It is not a de Polignac number, because 1840000401 - 2¹ = 1840000399 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1840000411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57831 + ... + 83811.

It is an arithmetic number, because the mean of its divisors is an integer number (88598620).

Almost surely, 2^1840000401 is an apocalyptic number.

It is an amenable number.

1840000401 is a deficient number, since it is larger than the sum of its proper divisors (995155439).

1840000401 is a wasteful number, since it uses less digits than its factorization.

1840000401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26094 (or 26088 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1840000401 is about 42895.2258532345. The cubic root of 1840000401 is about 1225.3852240637.

Adding to 1840000401 its reverse (1040000481), we get a palindrome (2880000882).

The spelling of 1840000401 in words is "one billion, eight hundred forty million, four hundred one", and thus it is an aban number.