1202778 has 12 divisors (see below), whose sum is σ = 2606058. Its totient is φ = 400920.

The previous prime is 1202771. The next prime is 1202779. The reversal of 1202778 is 8772021.

It can be written as a sum of positive squares in only one way, i.e., 1159929 + 42849 = 1077^2 + 207^2 .

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1202771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33393 + ... + 33428.

2^1202778 is an apocalyptic number.

1202778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1202778 is an abundant number, since it is smaller than the sum of its proper divisors (1403280).

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

1202778 is a wasteful number, since it uses less digits than its factorization.

1202778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66829 (or 66826 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 1202778 is about 1096.7123597370. The cubic root of 1202778 is about 106.3477955410.

Adding to 1202778 its reverse (8772021), we get a palindrome (9974799).

The spelling of 1202778 in words is "one million, two hundred two thousand, seven hundred seventy-eight".