1427422057 has 4 divisors (see below), whose sum is σ = 1428368256. Its totient is φ = 1426475860.

The previous prime is 1427422049. The next prime is 1427422097. The reversal of 1427422057 is 7502247241.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7502247241 = 37003 ⋅202747.

It is a cyclic number.

It is not a de Polignac number, because 1427422057 - 2³ = 1427422049 is a prime.

It is a super-2 number, since 2×1427422057² = 4075067457620222498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1427422097) 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, 470833 + ... + 473854.

It is an arithmetic number, because the mean of its divisors is an integer number (357092064).

Almost surely, 2^1427422057 is an apocalyptic number.

It is an amenable number.

1427422057 is a deficient number, since it is larger than the sum of its proper divisors (946199).

1427422057 is an equidigital number, since it uses as much as digits as its factorization.

1427422057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946198.

The product of its (nonzero) digits is 31360, while the sum is 34.

The square root of 1427422057 is about 37781.2394846966. The cubic root of 1427422057 is about 1125.9457547006.

Adding to 1427422057 its reverse (7502247241), we get a palindrome (8929669298).

The spelling of 1427422057 in words is "one billion, four hundred twenty-seven million, four hundred twenty-two thousand, fifty-seven".