1425842479 has 24 divisors (see below), whose sum is σ = 1611406160. Its totient is φ = 1257762816.

The previous prime is 1425842459. The next prime is 1425842491. The reversal of 1425842479 is 9742485241.

It is a de Polignac number, because none of the positive numbers 2^k-1425842479 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 (1425842459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 531289 + ... + 533965.

Almost surely, 2^1425842479 is an apocalyptic number.

1425842479 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1425842479 is a deficient number, since it is larger than the sum of its proper divisors (185563681).

1425842479 is a wasteful number, since it uses less digits than its factorization.

1425842479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827 (or 2810 counting only the distinct ones).

The product of its digits is 645120, while the sum is 46.

The square root of 1425842479 is about 37760.3294344740. The cubic root of 1425842479 is about 1125.5302794570.

The spelling of 1425842479 in words is "one billion, four hundred twenty-five million, eight hundred forty-two thousand, four hundred seventy-nine".