25343390 has 32 divisors (see below), whose sum is σ = 47511360. Its totient is φ = 9721600.

The previous prime is 25343389. The next prime is 25343393. The reversal of 25343390 is 9334352.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25343393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81335 + ... + 81645.

It is an arithmetic number, because the mean of its divisors is an integer number (1484730).

Almost surely, 2^25343390 is an apocalyptic number.

25343390 is a deficient number, since it is larger than the sum of its proper divisors (22167970).

25343390 is a wasteful number, since it uses less digits than its factorization.

25343390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 25343390 is about 5034.2218862501. The cubic root of 25343390 is about 293.7344618309.

The spelling of 25343390 in words is "twenty-five million, three hundred forty-three thousand, three hundred ninety".