16140030 has 16 divisors (see below), whose sum is σ = 38736144. Its totient is φ = 4304000.

The previous prime is 16140017. The next prime is 16140031. The reversal of 16140030 is 3004161.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 16139991 and 16140009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16140031) 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, 268971 + ... + 269030.

It is an arithmetic number, because the mean of its divisors is an integer number (2421009).

Almost surely, 2^16140030 is an apocalyptic number.

16140030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16140030 is an abundant number, since it is smaller than the sum of its proper divisors (22596114).

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

16140030 is a wasteful number, since it uses less digits than its factorization.

16140030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538011.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 16140030 is about 4017.4656190190. The cubic root of 16140030 is about 252.7171872470.

Adding to 16140030 its reverse (3004161), we get a palindrome (19144191).

The spelling of 16140030 in words is "sixteen million, one hundred forty thousand, thirty".