1240442344 has 8 divisors (see below), whose sum is σ = 2325829410. Its totient is φ = 620221168.

The previous prime is 1240442327. The next prime is 1240442347. The reversal of 1240442344 is 4432440421.

It can be written as a sum of positive squares in only one way, i.e., 1218708100 + 21734244 = 34910^2 + 4662^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1240442347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77527639 + ... + 77527654.

Almost surely, 2^1240442344 is an apocalyptic number.

It is an amenable number.

1240442344 is a deficient number, since it is larger than the sum of its proper divisors (1085387066).

1240442344 is a wasteful number, since it uses less digits than its factorization.

1240442344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155055299 (or 155055295 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 1240442344 is about 35219.9140260166. The cubic root of 1240442344 is about 1074.4648048759.

Adding to 1240442344 its reverse (4432440421), we get a palindrome (5672882765).

The spelling of 1240442344 in words is "one billion, two hundred forty million, four hundred forty-two thousand, three hundred forty-four".