544240431 has 64 divisors (see below), whose sum is σ = 984960000. Its totient is φ = 289916928.

The previous prime is 544240423. The next prime is 544240439. The reversal of 544240431 is 134042445.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (544240423) and next prime (544240439).

It is not a de Polignac number, because 544240431 - 2³ = 544240423 is a prime.

It is a super-2 number, since 2×544240431² = 592395293470131522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 544240395 and 544240404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544240439) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 362320 + ... + 363818.

It is an arithmetic number, because the mean of its divisors is an integer number (15390000).

Almost surely, 2^544240431 is an apocalyptic number.

544240431 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

544240431 is a deficient number, since it is larger than the sum of its proper divisors (440719569).

544240431 is a wasteful number, since it uses less digits than its factorization.

544240431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645 (or 1639 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 544240431 is about 23328.9612070491. The cubic root of 544240431 is about 816.4512669370.

Adding to 544240431 its reverse (134042445), we get a palindrome (678282876).

The spelling of 544240431 in words is "five hundred forty-four million, two hundred forty thousand, four hundred thirty-one".