624431441 has 8 divisors (see below), whose sum is σ = 639673344. Its totient is φ = 609351120.

The previous prime is 624431413. The next prime is 624431459. The reversal of 624431441 is 144134426.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 624431441 - 2⁶ = 624431377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (624431141) 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 7 ways as a sum of consecutive naturals, for example, 32555 + ... + 48048.

It is an arithmetic number, because the mean of its divisors is an integer number (79959168).

Almost surely, 2^624431441 is an apocalyptic number.

624431441 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

624431441 is a deficient number, since it is larger than the sum of its proper divisors (15241903).

624431441 is a wasteful number, since it uses less digits than its factorization.

624431441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80791.

The product of its digits is 9216, while the sum is 29.

The square root of 624431441 is about 24988.6262327484. The cubic root of 624431441 is about 854.7286354259.

Adding to 624431441 its reverse (144134426), we get a palindrome (768565867).

The spelling of 624431441 in words is "six hundred twenty-four million, four hundred thirty-one thousand, four hundred forty-one".