1240543422 has 12 divisors (see below), whose sum is σ = 2687844120. Its totient is φ = 413514468.

The previous prime is 1240543417. The next prime is 1240543429. The reversal of 1240543422 is 2243450421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240543429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34459522 + ... + 34459557.

It is an arithmetic number, because the mean of its divisors is an integer number (223987010).

Almost surely, 2^1240543422 is an apocalyptic number.

1240543422 is an abundant number, since it is smaller than the sum of its proper divisors (1447300698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1240543422 is a wasteful number, since it uses less digits than its factorization.

1240543422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68919087 (or 68919084 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 1240543422 is about 35221.3489520206. The cubic root of 1240543422 is about 1074.4939884986.

Adding to 1240543422 its reverse (2243450421), we get a palindrome (3483993843).

The spelling of 1240543422 in words is "one billion, two hundred forty million, five hundred forty-three thousand, four hundred twenty-two".