5421040 has 20 divisors (see below), whose sum is σ = 12604104. Its totient is φ = 2168384.

The previous prime is 5421019. The next prime is 5421043. The reversal of 5421040 is 401245.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33802 + ... + 33961.

Almost surely, 2^5421040 is an apocalyptic number.

It is an amenable number.

5421040 is an abundant number, since it is smaller than the sum of its proper divisors (7183064).

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

5421040 is a wasteful number, since it uses less digits than its factorization.

5421040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67776 (or 67770 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 5421040 is about 2328.3126937763. The cubic root of 5421040 is about 175.6686257888.

Adding to 5421040 its reverse (401245), we get a palindrome (5822285).

The spelling of 5421040 in words is "five million, four hundred twenty-one thousand, forty".