1020078 has 12 divisors (see below), whose sum is σ = 2210208. Its totient is φ = 340020.

The previous prime is 1020077. The next prime is 1020079. The reversal of 1020078 is 8700201.

It is an interprime number because it is at equal distance from previous prime (1020077) and next prime (1020079).

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 56671 = 1020078 / (1 + 0 + 2 + 0 + 0 + 7 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 1020078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28318 + ... + 28353.

It is an arithmetic number, because the mean of its divisors is an integer number (184184).

2^1020078 is an apocalyptic number.

1020078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1020078 is an abundant number, since it is smaller than the sum of its proper divisors (1190130).

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

1020078 is a wasteful number, since it uses less digits than its factorization.

1020078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56679 (or 56676 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1020078 is about 1009.9891088522. The cubic root of 1020078 is about 100.6648367916.

Adding to 1020078 its reverse (8700201), we get a palindrome (9720279).

The spelling of 1020078 in words is "one million, twenty thousand, seventy-eight".