16116420 has 24 divisors (see below), whose sum is σ = 45126144. Its totient is φ = 4297696.

The previous prime is 16116407. The next prime is 16116439. The reversal of 16116420 is 2461161.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134244 + ... + 134363.

It is an arithmetic number, because the mean of its divisors is an integer number (1880256).

Almost surely, 2^16116420 is an apocalyptic number.

16116420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16116420 is an abundant number, since it is smaller than the sum of its proper divisors (29009724).

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

16116420 is a wasteful number, since it uses less digits than its factorization.

16116420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268619 (or 268617 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 16116420 is about 4014.5261239653. The cubic root of 16116420 is about 252.5939003109.

Adding to 16116420 its reverse (2461161), we get a palindrome (18577581).

The spelling of 16116420 in words is "sixteen million, one hundred sixteen thousand, four hundred twenty".