1425566408 has 36 divisors (see below), whose sum is σ = 3110966235. Its totient is φ = 610636656.

The previous prime is 1425566393. The next prime is 1425566413. The reversal of 1425566408 is 8046655241.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 712783204 + 712783204 = 26698^2 + 26698^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=26698.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 746591 + ... + 748497.

Almost surely, 2^1425566408 is an apocalyptic number.

It is an amenable number.

1425566408 is an abundant number, since it is smaller than the sum of its proper divisors (1685399827).

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

1425566408 is an frugal number, since it uses more digits than its factorization.

1425566408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3834 (or 1916 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The square root of 1425566408 is about 37756.6736882369. The cubic root of 1425566408 is about 1125.4576332073.

The spelling of 1425566408 in words is "one billion, four hundred twenty-five million, five hundred sixty-six thousand, four hundred eight".