1028823401 has 8 divisors (see below), whose sum is σ = 1064750400. Its totient is φ = 992926480.

The previous prime is 1028823379. The next prime is 1028823421. The reversal of 1028823401 is 1043288201.

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 1028823401 - 2⁶ = 1028823337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028823421) 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, 79196 + ... + 91266.

It is an arithmetic number, because the mean of its divisors is an integer number (133093800).

Almost surely, 2^1028823401 is an apocalyptic number.

1028823401 is the 14345-th centered decagonal number.

It is an amenable number.

1028823401 is a deficient number, since it is larger than the sum of its proper divisors (35926999).

1028823401 is a wasteful number, since it uses less digits than its factorization.

1028823401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15039.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 1028823401 is about 32075.2770993487. The cubic root of 1028823401 is about 1009.5169408469.

The spelling of 1028823401 in words is "one billion, twenty-eight million, eight hundred twenty-three thousand, four hundred one".