2403401 has 24 divisors (see below), whose sum is σ = 3294144. Its totient is φ = 1728720.

The previous prime is 2403389. The next prime is 2403403. The reversal of 2403401 is 1043042.

It is not a de Polignac number, because 2403401 - 2¹⁴ = 2387017 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2403403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184871 + ... + 184883.

It is an arithmetic number, because the mean of its divisors is an integer number (137256).

2^2403401 is an apocalyptic number.

It is an amenable number.

2403401 is a deficient number, since it is larger than the sum of its proper divisors (890743).

2403401 is an frugal number, since it uses more digits than its factorization.

2403401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59 (or 31 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2403401 is about 1550.2906179165. The cubic root of 2403401 is about 133.9498029849.

Adding to 2403401 its reverse (1043042), we get a palindrome (3446443).

The spelling of 2403401 in words is "two million, four hundred three thousand, four hundred one".