1278030 has 64 divisors (see below), whose sum is σ = 3447360. Its totient is φ = 301056.

The previous prime is 1278029. The next prime is 1278031. The reversal of 1278030 is 308721.

It is an interprime number because it is at equal distance from previous prime (1278029) and next prime (1278031).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1277988 and 1278006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1278031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11254 + ... + 11366.

It is an arithmetic number, because the mean of its divisors is an integer number (53865).

2^1278030 is an apocalyptic number.

1278030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a pronic number, being equal to 1130×1131.

It is a practical number, because each smaller number is the sum of distinct divisors of 1278030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1723680).

1278030 is an abundant number, since it is smaller than the sum of its proper divisors (2169330).

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

1278030 is a wasteful number, since it uses less digits than its factorization.

1278030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 1278030 is about 1130.4998894295. The cubic root of 1278030 is about 108.5209739515.

The spelling of 1278030 in words is "one million, two hundred seventy-eight thousand, thirty".