2401331 has 4 divisors (see below), whose sum is σ = 2410464. Its totient is φ = 2392200.

The previous prime is 2401307. The next prime is 2401339. The reversal of 2401331 is 1331042.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2401331 is a prime.

It is a super-2 number, since 2×2401331² = 11532781143122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2401339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4160 + ... + 4701.

It is an arithmetic number, because the mean of its divisors is an integer number (602616).

2^2401331 is an apocalyptic number.

2401331 is a deficient number, since it is larger than the sum of its proper divisors (9133).

2401331 is an equidigital number, since it uses as much as digits as its factorization.

2401331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9132.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2401331 is about 1549.6228573430. The cubic root of 2401331 is about 133.9113358662.

Adding to 2401331 its reverse (1331042), we get a palindrome (3732373).

The spelling of 2401331 in words is "two million, four hundred one thousand, three hundred thirty-one".