16525740 has 192 divisors, whose sum is σ = 59673600. Its totient is φ = 3386880.

The previous prime is 16525727. The next prime is 16525741. The reversal of 16525740 is 4752561.

16525740 is nontrivially palindromic in base 9.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 16525698 and 16525707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16525741) 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 63 ways as a sum of consecutive naturals, for example, 226344 + ... + 226416.

It is an arithmetic number, because the mean of its divisors is an integer number (310800).

Almost surely, 2^16525740 is an apocalyptic number.

16525740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16525740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29836800).

16525740 is an abundant number, since it is smaller than the sum of its proper divisors (43147860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16525740 is a wasteful number, since it uses less digits than its factorization.

16525740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 16525740 is about 4065.1863425924. The cubic root of 16525740 is about 254.7144824312.

The spelling of 16525740 in words is "sixteen million, five hundred twenty-five thousand, seven hundred forty".