2493531 has 8 divisors (see below), whose sum is σ = 3694160. Its totient is φ = 1662336.

The previous prime is 2493529. The next prime is 2493551. The reversal of 2493531 is 1353942.

It is not a de Polignac number, because 2493531 - 2¹ = 2493529 is a prime.

It is a super-2 number, since 2×2493531² = 12435393695922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 92353 = 2493531 / (2 + 4 + 9 + 3 + 5 + 3 + 1).

It is a d-powerful number, because it can be written as 2¹³ + 4² + 9³ + 3³ + 5⁹ + 3¹² + 1 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2493495 and 2493504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2493511) 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, 46150 + ... + 46203.

It is an arithmetic number, because the mean of its divisors is an integer number (461770).

2^2493531 is an apocalyptic number.

2493531 is a deficient number, since it is larger than the sum of its proper divisors (1200629).

2493531 is an equidigital number, since it uses as much as digits as its factorization.

2493531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92362 (or 92356 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 2493531 is about 1579.0918276022. The cubic root of 2493531 is about 135.6037159292.

The spelling of 2493531 in words is "two million, four hundred ninety-three thousand, five hundred thirty-one".