16238340 has 48 divisors (see below), whose sum is σ = 50520960. Its totient is φ = 4330080.

The previous prime is 16238329. The next prime is 16238351. The reversal of 16238340 is 4383261.

It is a happy number.

16238340 is a `hidden beast` number, since 1 + 623 + 8 + 34 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (16238329) and next prime (16238351).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14496 + ... + 15575.

It is an arithmetic number, because the mean of its divisors is an integer number (1052520).

Almost surely, 2^16238340 is an apocalyptic number.

16238340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16238340 is an abundant number, since it is smaller than the sum of its proper divisors (34282620).

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

16238340 is a wasteful number, since it uses less digits than its factorization.

16238340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30089 (or 30081 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 16238340 is about 4029.6823696167. The cubic root of 16238340 is about 253.2292547227.

The spelling of 16238340 in words is "sixteen million, two hundred thirty-eight thousand, three hundred forty".