1425090840 has 64 divisors (see below), whose sum is σ = 4293099360. Its totient is φ = 378439680.

The previous prime is 1425090829. The next prime is 1425090847. The reversal of 1425090840 is 480905241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425090847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4282 + ... + 53558.

Almost surely, 2^1425090840 is an apocalyptic number.

1425090840 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 1425090840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2146549680).

1425090840 is an abundant number, since it is smaller than the sum of its proper divisors (2868008520).

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

1425090840 is a wasteful number, since it uses less digits than its factorization.

1425090840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49532 (or 49528 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 1425090840 is about 37750.3753623722. The cubic root of 1425090840 is about 1125.3324686502.

The spelling of 1425090840 in words is "one billion, four hundred twenty-five million, ninety thousand, eight hundred forty".