1207713640 has 64 divisors (see below), whose sum is σ = 3115008000. Its totient is φ = 412812288.

The previous prime is 1207713623. The next prime is 1207713649. The reversal of 1207713640 is 463177021.

It is not an unprimeable number, because it can be changed into a prime (1207713649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87961 + ... + 100759.

It is an arithmetic number, because the mean of its divisors is an integer number (48672000).

Almost surely, 2^1207713640 is an apocalyptic number.

1207713640 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 1207713640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1557504000).

1207713640 is an abundant number, since it is smaller than the sum of its proper divisors (1907294360).

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

1207713640 is a wasteful number, since it uses less digits than its factorization.

1207713640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13154 (or 13150 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 1207713640 is about 34752.1746082170. The cubic root of 1207713640 is about 1064.9306426946.

The spelling of 1207713640 in words is "one billion, two hundred seven million, seven hundred thirteen thousand, six hundred forty".