2906439925 has 12 divisors (see below), whose sum is σ = 3610473156. Its totient is φ = 2320966400.

The previous prime is 2906439881. The next prime is 2906439929. The reversal of 2906439925 is 5299346092.

It can be written as a sum of positive squares in 6 ways, for example, as 1067917041 + 1838522884 = 32679^2 + 42878^2 .

It is not a de Polignac number, because 2906439925 - 2¹⁹ = 2905915637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2906439929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90436 + ... + 118285.

It is an arithmetic number, because the mean of its divisors is an integer number (300872763).

Almost surely, 2^2906439925 is an apocalyptic number.

2906439925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2906439925 is a deficient number, since it is larger than the sum of its proper divisors (704033231).

2906439925 is a wasteful number, since it uses less digits than its factorization.

2906439925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209288 (or 209283 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 49.

The square root of 2906439925 is about 53911.4081155371. The cubic root of 2906439925 is about 1427.0979541981.

The spelling of 2906439925 in words is "two billion, nine hundred six million, four hundred thirty-nine thousand, nine hundred twenty-five".