16038240 has 48 divisors (see below), whose sum is σ = 50521968. Its totient is φ = 4276736.

The previous prime is 16038227. The next prime is 16038241. The reversal of 16038240 is 4283061.

It is a happy number.

16038240 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 16038240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16038241) 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, 16227 + ... + 17186.

It is an arithmetic number, because the mean of its divisors is an integer number (1052541).

Almost surely, 2^16038240 is an apocalyptic number.

16038240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16038240 is an abundant number, since it is smaller than the sum of its proper divisors (34483728).

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

16038240 is a wasteful number, since it uses less digits than its factorization.

16038240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33431 (or 33423 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 16038240 is about 4004.7771473579. Note that the first 3 decimals coincide. The cubic root of 16038240 is about 252.1847976828.

The spelling of 16038240 in words is "sixteen million, thirty-eight thousand, two hundred forty".