16420712 has 128 divisors (see below), whose sum is σ = 42854400. Its totient is φ = 5702400.

The previous prime is 16420709. The next prime is 16420721. The reversal of 16420712 is 21702461.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 269162 + ... + 269222.

It is an arithmetic number, because the mean of its divisors is an integer number (334800).

Almost surely, 2^16420712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16420712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21427200).

16420712 is an abundant number, since it is smaller than the sum of its proper divisors (26433688).

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

16420712 is a wasteful number, since it uses less digits than its factorization.

16420712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 16420712 is about 4052.2477712993. The cubic root of 16420712 is about 254.1737294941.

The spelling of 16420712 in words is "sixteen million, four hundred twenty thousand, seven hundred twelve".