1425842028 has 120 divisors (see below), whose sum is σ = 4028115168. Its totient is φ = 437197824.

The previous prime is 1425842017. The next prime is 1425842029. The reversal of 1425842028 is 8202485241.

It is a super-2 number, since 2×1425842028² = 4066050977622305568, which contains 22 as substring.

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 = 1425841983 and 1425842001.

It is not an unprimeable number, because it can be changed into a prime (1425842029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2118300 + ... + 2118972.

Almost surely, 2^1425842028 is an apocalyptic number.

1425842028 is a gapful number since it is divisible by the number (18) 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 1425842028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2014057584).

1425842028 is an abundant number, since it is smaller than the sum of its proper divisors (2602273140).

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

1425842028 is a wasteful number, since it uses less digits than its factorization.

1425842028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205 (or 1194 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

The square root of 1425842028 is about 37760.3234625976. The cubic root of 1425842028 is about 1125.5301607870.

The spelling of 1425842028 in words is "one billion, four hundred twenty-five million, eight hundred forty-two thousand, twenty-eight".