16258420 has 12 divisors (see below), whose sum is σ = 34142724. Its totient is φ = 6503360.

The previous prime is 16258393. The next prime is 16258423. The reversal of 16258420 is 2485261.

16258420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3341584 + 12916836 = 1828^2 + 3594^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16258423) 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, 406441 + ... + 406480.

It is an arithmetic number, because the mean of its divisors is an integer number (2845227).

Almost surely, 2^16258420 is an apocalyptic number.

16258420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16258420 is an abundant number, since it is smaller than the sum of its proper divisors (17884304).

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

16258420 is a wasteful number, since it uses less digits than its factorization.

16258420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812930 (or 812928 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 16258420 is about 4032.1731113632. The cubic root of 16258420 is about 253.3335911047. Note that the first 3 decimals are identical.

It can be divided in two parts, 16258 and 420, that multiplied together give a triangular number (6828360 = T₃₆₉₅).

The spelling of 16258420 in words is "sixteen million, two hundred fifty-eight thousand, four hundred twenty".