16312420 has 12 divisors (see below), whose sum is σ = 34256124. Its totient is φ = 6524960.

The previous prime is 16312399. The next prime is 16312421. The reversal of 16312420 is 2421361.

16312420 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 10201636 + 6110784 = 3194^2 + 2472^2 .

It is not an unprimeable number, because it can be changed into a prime (16312421) 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, 407791 + ... + 407830.

It is an arithmetic number, because the mean of its divisors is an integer number (2854677).

Almost surely, 2^16312420 is an apocalyptic number.

16312420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16312420 is an abundant number, since it is smaller than the sum of its proper divisors (17943704).

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

16312420 is a wasteful number, since it uses less digits than its factorization.

16312420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815630 (or 815628 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 16312420 is about 4038.8637015874. The cubic root of 16312420 is about 253.6137515058.

Adding to 16312420 its reverse (2421361), we get a palindrome (18733781).

The spelling of 16312420 in words is "sixteen million, three hundred twelve thousand, four hundred twenty".