1400825 has 12 divisors (see below), whose sum is σ = 1753980. Its totient is φ = 1109760.

The previous prime is 1400821. The next prime is 1400863. The reversal of 1400825 is 5280041.

It can be written as a sum of positive squares in 6 ways, for example, as 29584 + 1371241 = 172^2 + 1171^2 .

It is not a de Polignac number, because 1400825 - 2² = 1400821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1400797 and 1400806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3221 + ... + 3629.

It is an arithmetic number, because the mean of its divisors is an integer number (146165).

2^1400825 is an apocalyptic number.

It is an amenable number.

1400825 is a deficient number, since it is larger than the sum of its proper divisors (353155).

1400825 is a wasteful number, since it uses less digits than its factorization.

1400825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 551 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1400825 is about 1183.5645314050. The cubic root of 1400825 is about 111.8908641403.

Adding to 1400825 its reverse (5280041), we get a palindrome (6680866).

The spelling of 1400825 in words is "one million, four hundred thousand, eight hundred twenty-five".