1426420757 has 4 divisors (see below), whose sum is σ = 1450597440. Its totient is φ = 1402244076.

The previous prime is 1426420753. The next prime is 1426420771. The reversal of 1426420757 is 7570246241.

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: 7570246241 = 1279 ⋅5918879.

It is a cyclic number.

It is not a de Polignac number, because 1426420757 - 2² = 1426420753 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1426420757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426420753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12088253 + ... + 12088370.

It is an arithmetic number, because the mean of its divisors is an integer number (362649360).

Almost surely, 2^1426420757 is an apocalyptic number.

It is an amenable number.

1426420757 is a deficient number, since it is larger than the sum of its proper divisors (24176683).

1426420757 is an equidigital number, since it uses as much as digits as its factorization.

1426420757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24176682.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 1426420757 is about 37767.9858742825. The cubic root of 1426420757 is about 1125.6824190838.

Adding to 1426420757 its reverse (7570246241), we get a palindrome (8996666998).

The spelling of 1426420757 in words is "one billion, four hundred twenty-six million, four hundred twenty thousand, seven hundred fifty-seven".