1022398 has 8 divisors (see below), whose sum is σ = 1651608. Its totient is φ = 471864.

The previous prime is 1022389. The next prime is 1022429. The reversal of 1022398 is 8932201.

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

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, 19636 + ... + 19687.

It is an arithmetic number, because the mean of its divisors is an integer number (206451).

2^1022398 is an apocalyptic number.

1022398 is a deficient number, since it is larger than the sum of its proper divisors (629210).

1022398 is a wasteful number, since it uses less digits than its factorization.

1022398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39338.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1022398 is about 1011.1369837960. The cubic root of 1022398 is about 100.7410942260.

Adding to 1022398 its reverse (8932201), we get a palindrome (9954599).

It can be divided in two parts, 102 and 2398, that added together give a square (2500 = 50²).

The spelling of 1022398 in words is "one million, twenty-two thousand, three hundred ninety-eight".