1026203778 has 48 divisors (see below), whose sum is σ = 2267010720. Its totient is φ = 335420352.

The previous prime is 1026203771. The next prime is 1026203791. The reversal of 1026203778 is 8773026201.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1026203771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 233025 + ... + 237387.

It is an arithmetic number, because the mean of its divisors is an integer number (47229390).

Almost surely, 2^1026203778 is an apocalyptic number.

1026203778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1026203778 is an abundant number, since it is smaller than the sum of its proper divisors (1240806942).

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

1026203778 is a wasteful number, since it uses less digits than its factorization.

1026203778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4623 (or 4620 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 1026203778 is about 32034.4155245573. The cubic root of 1026203778 is about 1008.6593911696.

Adding to 1026203778 its reverse (8773026201), we get a palindrome (9799229979).

The spelling of 1026203778 in words is "one billion, twenty-six million, two hundred three thousand, seven hundred seventy-eight".