5420440 has 16 divisors (see below), whose sum is σ = 12196080. Its totient is φ = 2168160.

The previous prime is 5420431. The next prime is 5420449. The reversal of 5420440 is 440245.

It is an interprime number because it is at equal distance from previous prime (5420431) and next prime (5420449).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5420449) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 67716 + ... + 67795.

It is an arithmetic number, because the mean of its divisors is an integer number (762255).

Almost surely, 2^5420440 is an apocalyptic number.

It is an amenable number.

5420440 is an abundant number, since it is smaller than the sum of its proper divisors (6775640).

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

5420440 is a wasteful number, since it uses less digits than its factorization.

5420440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135522 (or 135518 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 5420440 is about 2328.1838415383. The cubic root of 5420440 is about 175.6621445562.

Adding to 5420440 its reverse (440245), we get a palindrome (5860685).

The spelling of 5420440 in words is "five million, four hundred twenty thousand, four hundred forty".