16396425 has 36 divisors (see below), whose sum is σ = 30466800. Its totient is φ = 8741520.

The previous prime is 16396423. The next prime is 16396453. The reversal of 16396425 is 52469361.

It is a happy number.

16396425 is a `hidden beast` number, since 1 + 6 + 3 + 9 + 642 + 5 = 666.

It is not a de Polignac number, because 16396425 - 2¹ = 16396423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16396425.

It is not an unprimeable number, because it can be changed into a prime (16396423) 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 35 ways as a sum of consecutive naturals, for example, 4726 + ... + 7424.

It is an arithmetic number, because the mean of its divisors is an integer number (846300).

Almost surely, 2^16396425 is an apocalyptic number.

16396425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16396425 is the 2025-th decagonal number.

It is an amenable number.

16396425 is a deficient number, since it is larger than the sum of its proper divisors (14070375).

16396425 is an equidigital number, since it uses as much as digits as its factorization.

16396425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2724 (or 2707 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 16396425 is about 4049.2499305427. The cubic root of 16396425 is about 254.0483560569.

The spelling of 16396425 in words is "sixteen million, three hundred ninety-six thousand, four hundred twenty-five".