1406305025 has 12 divisors (see below), whose sum is σ = 1846396332. Its totient is φ = 1058864640.

The previous prime is 1406305013. The next prime is 1406305079. The reversal of 1406305025 is 5205036041.

It can be written as a sum of positive squares in 6 ways, for example, as 42627841 + 1363677184 = 6529^2 + 36928^2 .

It is not a de Polignac number, because 1406305025 - 2¹⁰ = 1406304001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1406304985 and 1406305003.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1654052 + ... + 1654901.

It is an arithmetic number, because the mean of its divisors is an integer number (153866361).

Almost surely, 2^1406305025 is an apocalyptic number.

It is an amenable number.

1406305025 is a deficient number, since it is larger than the sum of its proper divisors (440091307).

1406305025 is a wasteful number, since it uses less digits than its factorization.

1406305025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308980 (or 3308975 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1406305025 is about 37500.7336594899. The cubic root of 1406305025 is about 1120.3657991477.

The spelling of 1406305025 in words is "one billion, four hundred six million, three hundred five thousand, twenty-five".