16380045 has 24 divisors (see below), whose sum is σ = 30974112. Its totient is φ = 7941600.

The previous prime is 16380043. The next prime is 16380073. The reversal of 16380045 is 54008361.

It is not a de Polignac number, because 16380045 - 2¹ = 16380043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16380043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16051 + ... + 17040.

It is an arithmetic number, because the mean of its divisors is an integer number (1290588).

Almost surely, 2^16380045 is an apocalyptic number.

16380045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16380045 is a deficient number, since it is larger than the sum of its proper divisors (14594067).

16380045 is a wasteful number, since it uses less digits than its factorization.

16380045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33113 (or 33110 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 16380045 is about 4047.2268283357. The cubic root of 16380045 is about 253.9637299152.

It can be divided in two parts, 163 and 80045, that added together give a palindrome (80208).

The spelling of 16380045 in words is "sixteen million, three hundred eighty thousand, forty-five".