1238642713 has 32 divisors (see below), whose sum is σ = 1617057792. Its totient is φ = 919987200.

The previous prime is 1238642651. The next prime is 1238642719. The reversal of 1238642713 is 3172468321.

It is a happy number.

It is not a de Polignac number, because 1238642713 - 2¹³ = 1238634521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1238642719) 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, 585145 + ... + 587257.

It is an arithmetic number, because the mean of its divisors is an integer number (50533056).

Almost surely, 2^1238642713 is an apocalyptic number.

It is an amenable number.

1238642713 is a deficient number, since it is larger than the sum of its proper divisors (378415079).

1238642713 is a wasteful number, since it uses less digits than its factorization.

1238642713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2485.

The product of its digits is 48384, while the sum is 37.

The square root of 1238642713 is about 35194.3562663107. The cubic root of 1238642713 is about 1073.9449430051.

The spelling of 1238642713 in words is "one billion, two hundred thirty-eight million, six hundred forty-two thousand, seven hundred thirteen".