16380537 has 8 divisors (see below), whose sum is σ = 23125536. Its totient is φ = 10277952.

The previous prime is 16380521. The next prime is 16380541. The reversal of 16380537 is 73508361.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16380537 - 2⁴ = 16380521 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 16380498 and 16380507.

It is not an unprimeable number, because it can be changed into a prime (16380517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160543 + ... + 160644.

It is an arithmetic number, because the mean of its divisors is an integer number (2890692).

Almost surely, 2^16380537 is an apocalyptic number.

16380537 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16380537 is a deficient number, since it is larger than the sum of its proper divisors (6744999).

16380537 is a wasteful number, since it uses less digits than its factorization.

16380537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321207.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 16380537 is about 4047.2876102397. The cubic root of 16380537 is about 253.9662726209.

Adding to 16380537 its reverse (73508361), we get a palindrome (89888898).

The spelling of 16380537 in words is "sixteen million, three hundred eighty thousand, five hundred thirty-seven".