5421312 has 108 divisors (see below), whose sum is σ = 16926364. Its totient is φ = 1658880.

The previous prime is 5421287. The next prime is 5421323. The reversal of 5421312 is 2131245.

It can be written as a sum of positive squares in 2 ways, for example, as 331776 + 5089536 = 576^2 + 2256^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29862 + ... + 30042.

Almost surely, 2^5421312 is an apocalyptic number.

5421312 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5421312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8463182).

5421312 is an abundant number, since it is smaller than the sum of its proper divisors (11505052).

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

5421312 is a wasteful number, since it uses less digits than its factorization.

5421312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 199 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 5421312 is about 2328.3711044419. The cubic root of 5421312 is about 175.6715637901.

Adding to 5421312 its reverse (2131245), we get a palindrome (7552557).

The spelling of 5421312 in words is "five million, four hundred twenty-one thousand, three hundred twelve".