3400725 has 12 divisors (see below), whose sum is σ = 5622656. Its totient is φ = 1813680.

The previous prime is 3400717. The next prime is 3400739. The reversal of 3400725 is 5270043.

It is a happy number.

3400725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3400725 - 2³ = 3400717 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 22597 + ... + 22746.

Almost surely, 2^3400725 is an apocalyptic number.

It is an amenable number.

3400725 is a deficient number, since it is larger than the sum of its proper divisors (2221931).

3400725 is a wasteful number, since it uses less digits than its factorization.

3400725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45356 (or 45351 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 3400725 is about 1844.1054742069. The cubic root of 3400725 is about 150.3801468862.

Adding to 3400725 its reverse (5270043), we get a palindrome (8670768).

The spelling of 3400725 in words is "three million, four hundred thousand, seven hundred twenty-five".