16270420 has 24 divisors (see below), whose sum is σ = 34491744. Its totient is φ = 6446496.

The previous prime is 16270391. The next prime is 16270433. The reversal of 16270420 is 2407261.

It is a junction number, because it is equal to n+sod(n) for n = 16270391 and 16270400.

It is a congruent number.

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, 1662 + ... + 5941.

It is an arithmetic number, because the mean of its divisors is an integer number (1437156).

Almost surely, 2^16270420 is an apocalyptic number.

16270420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16270420 is an abundant number, since it is smaller than the sum of its proper divisors (18221324).

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

16270420 is a wasteful number, since it uses less digits than its factorization.

16270420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7719 (or 7717 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 16270420 is about 4033.6608682436. The cubic root of 16270420 is about 253.3959025199.

Adding to 16270420 its reverse (2407261), we get a palindrome (18677681).

The spelling of 16270420 in words is "sixteen million, two hundred seventy thousand, four hundred twenty".