5121400 has 48 divisors (see below), whose sum is σ = 12331800. Its totient is φ = 1975680.

The previous prime is 5121383. The next prime is 5121419. The reversal of 5121400 is 41215.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5359 + ... + 6241.

Almost surely, 2^5121400 is an apocalyptic number.

5121400 is a gapful number since it is divisible by the number (50) 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 5121400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6165900).

5121400 is an abundant number, since it is smaller than the sum of its proper divisors (7210400).

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

5121400 is a wasteful number, since it uses less digits than its factorization.

5121400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 5121400 is about 2263.0510378690. The cubic root of 5121400 is about 172.3704831905.

Adding to 5121400 its reverse (41215), we get a palindrome (5162615).

The spelling of 5121400 in words is "five million, one hundred twenty-one thousand, four hundred".