1400625 has 40 divisors (see below), whose sum is σ = 2624160. Its totient is φ = 738000.

The previous prime is 1400599. The next prime is 1400627. The reversal of 1400625 is 5260041.

It is a happy number.

1400625 is a `hidden beast` number, since 1 + 40 + 0 + 625 = 666.

It is not a de Polignac number, because 1400625 - 2⁸ = 1400369 is a prime.

It is a Curzon number.

1400625 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1400598 and 1400607.

It is not an unprimeable number, because it can be changed into a prime (1400627) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16834 + ... + 16916.

It is an arithmetic number, because the mean of its divisors is an integer number (65604).

2^1400625 is an apocalyptic number.

1400625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1400625 is a deficient number, since it is larger than the sum of its proper divisors (1223535).

1400625 is an frugal number, since it uses more digits than its factorization.

1400625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1400625 is about 1183.4800378545. The cubic root of 1400625 is about 111.8855388884.

Adding to 1400625 its reverse (5260041), we get a palindrome (6660666).

It can be divided in two parts, 1400 and 625, that added together give a square (2025 = 45²).

The spelling of 1400625 in words is "one million, four hundred thousand, six hundred twenty-five".