1422243757 has 8 divisors (see below), whose sum is σ = 1558376352. Its totient is φ = 1287250800.

The previous prime is 1422243737. The next prime is 1422243787. The reversal of 1422243757 is 7573422241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1422243757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422243737) 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, 282294 + ... + 287287.

It is an arithmetic number, because the mean of its divisors is an integer number (194797044).

Almost surely, 2^1422243757 is an apocalyptic number.

It is an amenable number.

1422243757 is a deficient number, since it is larger than the sum of its proper divisors (136132595).

1422243757 is a wasteful number, since it uses less digits than its factorization.

1422243757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569819.

The product of its digits is 94080, while the sum is 37.

The square root of 1422243757 is about 37712.6471757155. The cubic root of 1422243757 is about 1124.5825630200.

Adding to 1422243757 its reverse (7573422241), we get a palindrome (8995665998).

The spelling of 1422243757 in words is "one billion, four hundred twenty-two million, two hundred forty-three thousand, seven hundred fifty-seven".