1422743757 has 4 divisors (see below), whose sum is σ = 1896991680. Its totient is φ = 948495836.

The previous prime is 1422743737. The next prime is 1422743783. The reversal of 1422743757 is 7573472241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1422743757 - 2⁷ = 1422743629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422743737) 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, 237123957 + ... + 237123962.

It is an arithmetic number, because the mean of its divisors is an integer number (474247920).

Almost surely, 2^1422743757 is an apocalyptic number.

It is an amenable number.

1422743757 is a deficient number, since it is larger than the sum of its proper divisors (474247923).

1422743757 is an equidigital number, since it uses as much as digits as its factorization.

1422743757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474247922.

The product of its digits is 329280, while the sum is 42.

The square root of 1422743757 is about 37719.2756690793. The cubic root of 1422743757 is about 1124.7143326034.

The spelling of 1422743757 in words is "one billion, four hundred twenty-two million, seven hundred forty-three thousand, seven hundred fifty-seven".