2402031 has 4 divisors (see below), whose sum is σ = 3202712. Its totient is φ = 1601352.

The previous prime is 2402027. The next prime is 2402039. The reversal of 2402031 is 1302042.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2402031 - 2² = 2402027 is a prime.

It is a super-2 number, since 2×2402031² = 11539505849922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 2401998 and 2402016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2402039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400336 + ... + 400341.

It is an arithmetic number, because the mean of its divisors is an integer number (800678).

2^2402031 is an apocalyptic number.

2402031 is a deficient number, since it is larger than the sum of its proper divisors (800681).

2402031 is an equidigital number, since it uses as much as digits as its factorization.

2402031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800680.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2402031 is about 1549.8487022932. The cubic root of 2402031 is about 133.9243465435.

Adding to 2402031 its reverse (1302042), we get a palindrome (3704073).

The spelling of 2402031 in words is "two million, four hundred two thousand, thirty-one".