16040030 has 8 divisors (see below), whose sum is σ = 28872072. Its totient is φ = 6416008.

The previous prime is 16039963. The next prime is 16040053. The reversal of 16040030 is 3004061.

16040030 = 2001² + 2002² + ... + 2004².

16040030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 16039987 and 16040014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801992 + ... + 802011.

It is an arithmetic number, because the mean of its divisors is an integer number (3609009).

Almost surely, 2^16040030 is an apocalyptic number.

16040030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16040030 is a deficient number, since it is larger than the sum of its proper divisors (12832042).

16040030 is a wasteful number, since it uses less digits than its factorization.

16040030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604010.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 16040030 is about 4005.0006242197. Note that the first 3 decimals coincide. The cubic root of 16040030 is about 252.1941793023.

Adding to 16040030 its reverse (3004061), we get a palindrome (19044091).

The spelling of 16040030 in words is "sixteen million, forty thousand, thirty".