1406625 has 48 divisors (see below), whose sum is σ = 2655744. Its totient is φ = 660000.

The previous prime is 1406617. The next prime is 1406633. The reversal of 1406625 is 5266041.

It is an interprime number because it is at equal distance from previous prime (1406617) and next prime (1406633).

It is not a de Polignac number, because 1406625 - 2³ = 1406617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1406595 and 1406604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45360 + ... + 45390.

It is an arithmetic number, because the mean of its divisors is an integer number (55328).

2^1406625 is an apocalyptic number.

1406625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1406625 is a deficient number, since it is larger than the sum of its proper divisors (1249119).

1406625 is a wasteful number, since it uses less digits than its factorization.

1406625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1406625 is about 1186.0122259066. The cubic root of 1406625 is about 112.0450764561.

The spelling of 1406625 in words is "one million, four hundred six thousand, six hundred twenty-five".