1307077278 has 64 divisors (see below), whose sum is σ = 2917770240. Its totient is φ = 387773568.

The previous prime is 1307077271. The next prime is 1307077297. The reversal of 1307077278 is 8727707031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307077271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262500 + ... + 267432.

It is an arithmetic number, because the mean of its divisors is an integer number (45590160).

Almost surely, 2^1307077278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1307077278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1458885120).

1307077278 is an abundant number, since it is smaller than the sum of its proper divisors (1610692962).

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

1307077278 is a wasteful number, since it uses less digits than its factorization.

1307077278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5073.

The product of its (nonzero) digits is 115248, while the sum is 42.

The square root of 1307077278 is about 36153.5237286768. The cubic root of 1307077278 is about 1093.3698359525.

The spelling of 1307077278 in words is "one billion, three hundred seven million, seventy-seven thousand, two hundred seventy-eight".