5401216 has 16 divisors (see below), whose sum is σ = 10760490. Its totient is φ = 2700544.

The previous prime is 5401213. The next prime is 5401237. The reversal of 5401216 is 6121045.

It can be written as a sum of positive squares in only one way, i.e., 5271616 + 129600 = 2296^2 + 360^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 5401193 and 5401202.

It is not an unprimeable number, because it can be changed into a prime (5401211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20971 + ... + 21226.

Almost surely, 2^5401216 is an apocalyptic number.

It is an amenable number.

5401216 is a deficient number, since it is larger than the sum of its proper divisors (5359274).

5401216 is an equidigital number, since it uses as much as digits as its factorization.

5401216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42211 (or 42199 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 5401216 is about 2324.0516345383. The cubic root of 5401216 is about 175.4542322139.

Subtracting from 5401216 its product of nonzero digits (240), we obtain a square (5400976 = 2324²).

The spelling of 5401216 in words is "five million, four hundred one thousand, two hundred sixteen".