1425085740 has 216 divisors, whose sum is σ = 4748103360. Its totient is φ = 345765888.

The previous prime is 1425085733. The next prime is 1425085763. The reversal of 1425085740 is 475805241.

1425085740 is a `hidden beast` number, since 142 + 508 + 5 + 7 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1425085695 and 1425085704.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2402884 + ... + 2403476.

It is an arithmetic number, because the mean of its divisors is an integer number (21981960).

Almost surely, 2^1425085740 is an apocalyptic number.

1425085740 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 1425085740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2374051680).

1425085740 is an abundant number, since it is smaller than the sum of its proper divisors (3323017620).

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

1425085740 is a wasteful number, since it uses less digits than its factorization.

1425085740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 1425085740 is about 37750.3078133146. The cubic root of 1425085740 is about 1125.3311262323.

The spelling of 1425085740 in words is "one billion, four hundred twenty-five million, eighty-five thousand, seven hundred forty".