2403081 has 8 divisors (see below), whose sum is σ = 3560160. Its totient is φ = 1602036.

The previous prime is 2403077. The next prime is 2403083. The reversal of 2403081 is 1803042.

It is a happy number.

It is not a de Polignac number, because 2403081 - 2² = 2403077 is a prime.

It is a super-2 number, since 2×2403081² = 11549596585122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2403083) 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, 44475 + ... + 44528.

It is an arithmetic number, because the mean of its divisors is an integer number (445020).

2^2403081 is an apocalyptic number.

It is an amenable number.

2403081 is a deficient number, since it is larger than the sum of its proper divisors (1157079).

2403081 is an equidigital number, since it uses as much as digits as its factorization.

2403081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89012 (or 89006 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2403081 is about 1550.1874080252. The cubic root of 2403081 is about 133.9438578209.

It can be divided in two parts, 240 and 3081, that added together give a triangular number (3321 = T₈₁).

The spelling of 2403081 in words is "two million, four hundred three thousand, eighty-one".