16642030 has 16 divisors (see below), whose sum is σ = 30006144. Its totient is φ = 6645600.

The previous prime is 16642013. The next prime is 16642033. The reversal of 16642030 is 3024661.

It is a junction number, because it is equal to n+sod(n) for n = 16641992 and 16642010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16642033) 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, 7555 + ... + 9505.

It is an arithmetic number, because the mean of its divisors is an integer number (1875384).

Almost surely, 2^16642030 is an apocalyptic number.

16642030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16642030 is a deficient number, since it is larger than the sum of its proper divisors (13364114).

16642030 is a wasteful number, since it uses less digits than its factorization.

16642030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2811.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 16642030 is about 4079.4644256324. The cubic root of 16642030 is about 255.3105533301.

Adding to 16642030 its reverse (3024661), we get a palindrome (19666691).

It can be divided in two parts, 166 and 42030, that multiplied together give a triangular number (6976980 = T₃₇₃₅).

The spelling of 16642030 in words is "sixteen million, six hundred forty-two thousand, thirty".