1425249280 has 528 divisors, whose sum is σ = 4704497280. Its totient is φ = 408748032.

The previous prime is 1425249251. The next prime is 1425249307. The reversal of 1425249280 is 829425241.

It is a congruent number.

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, 61967349 + ... + 61967371.

Almost surely, 2^1425249280 is an apocalyptic number.

1425249280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1425249280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2352248640).

1425249280 is an abundant number, since it is smaller than the sum of its proper divisors (3279248000).

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

1425249280 is a wasteful number, since it uses less digits than its factorization.

1425249280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 1425249280 is about 37752.4738262276. The cubic root of 1425249280 is about 1125.3741715050.

The spelling of 1425249280 in words is "one billion, four hundred twenty-five million, two hundred forty-nine thousand, two hundred eighty".