16380642 has 16 divisors (see below), whose sum is σ = 33317280. Its totient is φ = 5367552.

The previous prime is 16380619. The next prime is 16380647. The reversal of 16380642 is 24608361.

It is not an unprimeable number, because it can be changed into a prime (16380647) 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, 22783 + ... + 23490.

It is an arithmetic number, because the mean of its divisors is an integer number (2082330).

Almost surely, 2^16380642 is an apocalyptic number.

16380642 is an abundant number, since it is smaller than the sum of its proper divisors (16936638).

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

16380642 is a wasteful number, since it uses less digits than its factorization.

16380642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46337.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 16380642 is about 4047.3005818694. The cubic root of 16380642 is about 253.9668152650.

The spelling of 16380642 in words is "sixteen million, three hundred eighty thousand, six hundred forty-two".