2242640531 has 4 divisors (see below), whose sum is σ = 2242786392. Its totient is φ = 2242494672.

The previous prime is 2242640503. The next prime is 2242640597. The reversal of 2242640531 is 1350462422.

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

It is a cyclic number.

It is not a de Polignac number, because 2242640531 - 2⁶ = 2242640467 is a prime.

It is a super-2 number, since 2×2242640531² = 10058873102567923922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2242640494 and 2242640503.

It is not an unprimeable number, because it can be changed into a prime (2242640501) 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, 46730 + ... + 81663.

It is an arithmetic number, because the mean of its divisors is an integer number (560696598).

Almost surely, 2^2242640531 is an apocalyptic number.

2242640531 is a deficient number, since it is larger than the sum of its proper divisors (145861).

2242640531 is a wasteful number, since it uses less digits than its factorization.

2242640531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145860.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 2242640531 is about 47356.5257488342. The cubic root of 2242640531 is about 1308.9404502831.

The spelling of 2242640531 in words is "two billion, two hundred forty-two million, six hundred forty thousand, five hundred thirty-one".