1425289008 has 240 divisors, whose sum is σ = 4469991680. Its totient is φ = 388523520.

The previous prime is 1425288989. The next prime is 1425289049. The reversal of 1425289008 is 8009825241.

It is a Cunningham number, because it is equal to 37753²-1.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3246453 + ... + 3246891.

Almost surely, 2^1425289008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1425289008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2234995840).

1425289008 is an abundant number, since it is smaller than the sum of its proper divisors (3044702672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1425289008 is a wasteful number, since it uses less digits than its factorization.

1425289008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 1425289008 is about 37752.9999867560. Note that the first 4 decimals coincide. The cubic root of 1425289008 is about 1125.3846277927.

The spelling of 1425289008 in words is "one billion, four hundred twenty-five million, two hundred eighty-nine thousand, eight".