16232140 has 12 divisors (see below), whose sum is σ = 34087536. Its totient is φ = 6492848.

The previous prime is 16232131. The next prime is 16232149. The reversal of 16232140 is 4123261.

It is an interprime number because it is at equal distance from previous prime (16232131) and next prime (16232149).

It is not an unprimeable number, because it can be changed into a prime (16232149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405784 + ... + 405823.

It is an arithmetic number, because the mean of its divisors is an integer number (2840628).

Almost surely, 2^16232140 is an apocalyptic number.

16232140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16232140 is an abundant number, since it is smaller than the sum of its proper divisors (17855396).

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

16232140 is a wasteful number, since it uses less digits than its factorization.

16232140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811616 (or 811614 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 16232140 is about 4028.9130047694. The cubic root of 16232140 is about 253.1970219280.

The spelling of 16232140 in words is "sixteen million, two hundred thirty-two thousand, one hundred forty".