2438531 has 4 divisors (see below), whose sum is σ = 2581992. Its totient is φ = 2295072.

The previous prime is 2438521. The next prime is 2438537. The reversal of 2438531 is 1358342.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1358342 = 2 ⋅679171.

It is a cyclic number.

It is not a de Polignac number, because 2438531 - 2¹⁰ = 2437507 is a prime.

It is a super-2 number, since 2×2438531² = 11892866875922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2438531.

It is not an unprimeable number, because it can be changed into a prime (2438537) 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, 71705 + ... + 71738.

It is an arithmetic number, because the mean of its divisors is an integer number (645498).

2^2438531 is an apocalyptic number.

2438531 is a deficient number, since it is larger than the sum of its proper divisors (143461).

2438531 is a wasteful number, since it uses less digits than its factorization.

2438531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143460.

The product of its digits is 2880, while the sum is 26.

The square root of 2438531 is about 1561.5796489453. The cubic root of 2438531 is about 134.5992873017.

The spelling of 2438531 in words is "two million, four hundred thirty-eight thousand, five hundred thirty-one".