622284421 has 8 divisors (see below), whose sum is σ = 700754688. Its totient is φ = 547464000.

The previous prime is 622284419. The next prime is 622284427. The reversal of 622284421 is 124482226.

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 622284421 - 2¹ = 622284419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622284427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 912100 + ... + 912781.

It is an arithmetic number, because the mean of its divisors is an integer number (87594336).

Almost surely, 2^622284421 is an apocalyptic number.

It is an amenable number.

622284421 is a deficient number, since it is larger than the sum of its proper divisors (78470267).

622284421 is a wasteful number, since it uses less digits than its factorization.

622284421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824923.

The product of its digits is 12288, while the sum is 31.

The square root of 622284421 is about 24945.6292965321. The cubic root of 622284421 is about 853.7478889697.

The spelling of 622284421 in words is "six hundred twenty-two million, two hundred eighty-four thousand, four hundred twenty-one".