622448438 has 8 divisors (see below), whose sum is σ = 988594632. Its totient is φ = 292916896.

The previous prime is 622448423. The next prime is 622448461. The reversal of 622448438 is 834844226.

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

It is a junction number, because it is equal to n+sod(n) for n = 622448395 and 622448404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9153620 + ... + 9153687.

It is an arithmetic number, because the mean of its divisors is an integer number (123574329).

Almost surely, 2^622448438 is an apocalyptic number.

622448438 is a deficient number, since it is larger than the sum of its proper divisors (366146194).

622448438 is a wasteful number, since it uses less digits than its factorization.

622448438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18307326.

The product of its digits is 294912, while the sum is 41.

The square root of 622448438 is about 24948.9165696629. The cubic root of 622448438 is about 853.8228905081.

The spelling of 622448438 in words is "six hundred twenty-two million, four hundred forty-eight thousand, four hundred thirty-eight".