5421420 has 36 divisors (see below), whose sum is σ = 16445520. Its totient is φ = 1445664.

The previous prime is 5421413. The next prime is 5421421. The reversal of 5421420 is 241245.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 5421393 and 5421402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14880 + ... + 15239.

It is an arithmetic number, because the mean of its divisors is an integer number (456820).

Almost surely, 2^5421420 is an apocalyptic number.

It is an amenable number.

5421420 is an abundant number, since it is smaller than the sum of its proper divisors (11024100).

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

5421420 is a wasteful number, since it uses less digits than its factorization.

5421420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30134 (or 30129 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 5421420 is about 2328.3942965056. The cubic root of 5421420 is about 175.6727303222.

Adding to 5421420 its reverse (241245), we get a palindrome (5662665).

The spelling of 5421420 in words is "five million, four hundred twenty-one thousand, four hundred twenty".