1207442340 has 288 divisors, whose sum is σ = 4226826240. Its totient is φ = 276369408.

The previous prime is 1207442321. The next prime is 1207442351. The reversal of 1207442340 is 432447021.

1207442340 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5051941 + ... + 5052179.

It is an arithmetic number, because the mean of its divisors is an integer number (14676480).

Almost surely, 2^1207442340 is an apocalyptic number.

1207442340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1207442340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2113413120).

1207442340 is an abundant number, since it is smaller than the sum of its proper divisors (3019383900).

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

1207442340 is a wasteful number, since it uses less digits than its factorization.

1207442340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 1207442340 is about 34748.2710361249. The cubic root of 1207442340 is about 1064.8508949491.

Adding to 1207442340 its reverse (432447021), we get a palindrome (1639889361).

The spelling of 1207442340 in words is "one billion, two hundred seven million, four hundred forty-two thousand, three hundred forty".