1425020664 has 32 divisors (see below), whose sum is σ = 3658839120. Its totient is φ = 462168576.

The previous prime is 1425020603. The next prime is 1425020669. The reversal of 1425020664 is 4660205241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425020669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801489 + ... + 803264.

Almost surely, 2^1425020664 is an apocalyptic number.

It is an amenable number.

1425020664 is an abundant number, since it is smaller than the sum of its proper divisors (2233818456).

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

1425020664 is a wasteful number, since it uses less digits than its factorization.

1425020664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604799 (or 1604795 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1425020664 is about 37749.4458767278. The cubic root of 1425020664 is about 1125.3139966985.

The spelling of 1425020664 in words is "one billion, four hundred twenty-five million, twenty thousand, six hundred sixty-four".