16424140 has 12 divisors (see below), whose sum is σ = 34490736. Its totient is φ = 6569648.

The previous prime is 16424129. The next prime is 16424147. The reversal of 16424140 is 4142461.

It is not an unprimeable number, because it can be changed into a prime (16424147) 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, 410584 + ... + 410623.

It is an arithmetic number, because the mean of its divisors is an integer number (2874228).

Almost surely, 2^16424140 is an apocalyptic number.

16424140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16424140 is an abundant number, since it is smaller than the sum of its proper divisors (18066596).

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

16424140 is a wasteful number, since it uses less digits than its factorization.

16424140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821216 (or 821214 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 16424140 is about 4052.6707243496. The cubic root of 16424140 is about 254.1914154288.

The spelling of 16424140 in words is "sixteen million, four hundred twenty-four thousand, one hundred forty".