624380441 has 2 divisors, whose sum is σ = 624380442. Its totient is φ = 624380440.

The previous prime is 624380429. The next prime is 624380443. The reversal of 624380441 is 144083426.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 361000000 + 263380441 = 19000^2 + 16229^2 .

It is a cyclic number.

It is not a de Polignac number, because 624380441 - 2¹⁴ = 624364057 is a prime.

Together with 624380443, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 624380398 and 624380407.

It is not a weakly prime, because it can be changed into another prime (624380443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312190220 + 312190221.

It is an arithmetic number, because the mean of its divisors is an integer number (312190221).

Almost surely, 2^624380441 is an apocalyptic number.

It is an amenable number.

624380441 is a deficient number, since it is larger than the sum of its proper divisors (1).

624380441 is an equidigital number, since it uses as much as digits as its factorization.

624380441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 624380441 is about 24987.6057476502. The cubic root of 624380441 is about 854.7053650051.

The spelling of 624380441 in words is "six hundred twenty-four million, three hundred eighty thousand, four hundred forty-one".