5406431 has 16 divisors (see below), whose sum is σ = 6005760. Its totient is φ = 4847040.

The previous prime is 5406421. The next prime is 5406439. The reversal of 5406431 is 1346045.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5406431 - 2¹⁸ = 5144287 is a prime.

It is a super-2 number, since 2×5406431² = 58458992315522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5406397 and 5406406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5406439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39395 + ... + 39531.

It is an arithmetic number, because the mean of its divisors is an integer number (375360).

Almost surely, 2^5406431 is an apocalyptic number.

5406431 is a deficient number, since it is larger than the sum of its proper divisors (599329).

5406431 is a wasteful number, since it uses less digits than its factorization.

5406431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 5406431 is about 2325.1733268726. The cubic root of 5406431 is about 175.5106824340.

The spelling of 5406431 in words is "five million, four hundred six thousand, four hundred thirty-one".