1628041425 has 12 divisors (see below), whose sum is σ = 2691695280. Its totient is φ = 868288720.

The previous prime is 1628041369. The next prime is 1628041483. The reversal of 1628041425 is 5241408261.

It is a happy number.

It is not a de Polignac number, because 1628041425 - 2⁸ = 1628041169 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 10853535 + ... + 10853684.

It is an arithmetic number, because the mean of its divisors is an integer number (224307940).

Almost surely, 2^1628041425 is an apocalyptic number.

1628041425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1628041425 is a deficient number, since it is larger than the sum of its proper divisors (1063653855).

1628041425 is a wasteful number, since it uses less digits than its factorization.

1628041425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21707232 (or 21707227 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 1628041425 is about 40348.9953406525. The cubic root of 1628041425 is about 1176.4003644861.

Adding to 1628041425 its reverse (5241408261), we get a palindrome (6869449686).

The spelling of 1628041425 in words is "one billion, six hundred twenty-eight million, forty-one thousand, four hundred twenty-five".