16040325 has 24 divisors (see below), whose sum is σ = 30309568. Its totient is φ = 7332480.

The previous prime is 16040317. The next prime is 16040327. The reversal of 16040325 is 52304061.

It is a happy number.

It is not a de Polignac number, because 16040325 - 2³ = 16040317 is a prime.

It is a super-2 number, since 2×16040325² = 514584052211250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16040327) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 14752 + ... + 15801.

Almost surely, 2^16040325 is an apocalyptic number.

16040325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16040325 is a deficient number, since it is larger than the sum of its proper divisors (14269243).

16040325 is a wasteful number, since it uses less digits than its factorization.

16040325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30573 (or 30568 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 16040325 is about 4005.0374530084. The cubic root of 16040325 is about 252.1957253681.

Adding to 16040325 its reverse (52304061), we get a palindrome (68344386).

The spelling of 16040325 in words is "sixteen million, forty thousand, three hundred twenty-five".