1207278 has 32 divisors (see below), whose sum is σ = 2726400. Its totient is φ = 395928.

The previous prime is 1207267. The next prime is 1207291. The reversal of 1207278 is 8727021.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4125 + ... + 4407.

It is an arithmetic number, because the mean of its divisors is an integer number (85200).

2^1207278 is an apocalyptic number.

1207278 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1207278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1363200).

1207278 is an abundant number, since it is smaller than the sum of its proper divisors (1519122).

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

1207278 is a wasteful number, since it uses less digits than its factorization.

1207278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 367 counting only the distinct ones).

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

The square root of 1207278 is about 1098.7620306509. The cubic root of 1207278 is about 106.4802581935.

It can be divided in two parts, 1207 and 278, that added together give a triangular number (1485 = T₅₄).

The spelling of 1207278 in words is "one million, two hundred seven thousand, two hundred seventy-eight".