5401224 has 24 divisors (see below), whose sum is σ = 14628510. Its totient is φ = 1800384.

The previous prime is 5401213. The next prime is 5401237. The reversal of 5401224 is 4221045.

5401224 is a `hidden beast` number, since 540 + 122 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5062500 + 338724 = 2250^2 + 582^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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 = 5401197 and 5401206.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37437 + ... + 37580.

Almost surely, 2^5401224 is an apocalyptic number.

It is an amenable number.

5401224 is an abundant number, since it is smaller than the sum of its proper divisors (9227286).

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

5401224 is a wasteful number, since it uses less digits than its factorization.

5401224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75029 (or 75022 counting only the distinct ones).

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

The square root of 5401224 is about 2324.0533556698. The cubic root of 5401224 is about 175.4543188384.

Adding to 5401224 its reverse (4221045), we get a palindrome (9622269).

It can be divided in two parts, 5401 and 224, that added together give a square (5625 = 75²).

The spelling of 5401224 in words is "five million, four hundred one thousand, two hundred twenty-four".