2406625 has 16 divisors (see below), whose sum is σ = 3236688. Its totient is φ = 1776000.

The previous prime is 2406619. The next prime is 2406629. The reversal of 2406625 is 5266042.

It can be written as a sum of positive squares in 8 ways, for example, as 1327104 + 1079521 = 1152^2 + 1039^2 .

It is not a de Polignac number, because 2406625 - 2³ = 2406617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a d-powerful number, because it can be written as 2⁹ + 4⁹ + 0 + 6² + 6⁶ + 2²¹ + 5³ .

It is a self number, because there is not a number n which added to its sum of digits gives 2406625.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2406629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 885 + ... + 2365.

It is an arithmetic number, because the mean of its divisors is an integer number (202293).

2^2406625 is an apocalyptic number.

2406625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2406625 is a deficient number, since it is larger than the sum of its proper divisors (830063).

2406625 is a wasteful number, since it uses less digits than its factorization.

2406625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509 (or 1499 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2406625 is about 1551.3300744845. The cubic root of 2406625 is about 134.0096710923.

The spelling of 2406625 in words is "two million, four hundred six thousand, six hundred twenty-five".