1022868438 has 8 divisors (see below), whose sum is σ = 2045736888. Its totient is φ = 340956144.

The previous prime is 1022868409. The next prime is 1022868449. The reversal of 1022868438 is 8348682201.

It is a happy number.

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

1022868438 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022868438.

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, 85239031 + ... + 85239042.

It is an arithmetic number, because the mean of its divisors is an integer number (255717111).

Almost surely, 2^1022868438 is an apocalyptic number.

1022868438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022868438 is a wasteful number, since it uses less digits than its factorization.

1022868438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170478078.

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 1022868438 is about 31982.3144565868. The cubic root of 1022868438 is about 1007.5654325591.

The spelling of 1022868438 in words is "one billion, twenty-two million, eight hundred sixty-eight thousand, four hundred thirty-eight".