622241978 has 8 divisors (see below), whose sum is σ = 941926260. Its totient is φ = 308266560.

The previous prime is 622241969. The next prime is 622242011. The reversal of 622241978 is 879142226.

It can be written as a sum of positive squares in 2 ways, for example, as 494484169 + 127757809 = 22237^2 + 11303^2 .

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

It is a Curzon 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, 1426943 + ... + 1427378.

Almost surely, 2^622241978 is an apocalyptic number.

622241978 is a deficient number, since it is larger than the sum of its proper divisors (319684282).

622241978 is a wasteful number, since it uses less digits than its factorization.

622241978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854432.

The product of its digits is 96768, while the sum is 41.

The square root of 622241978 is about 24944.7785718775. The cubic root of 622241978 is about 853.7284785284.

The spelling of 622241978 in words is "six hundred twenty-two million, two hundred forty-one thousand, nine hundred seventy-eight".