1238696064 has 160 divisors (see below), whose sum is σ = 3787142700. Its totient is φ = 401614848.

The previous prime is 1238696029. The next prime is 1238696071. The reversal of 1238696064 is 4606968321.

1238696064 is a `hidden beast` number, since 1 + 2 + 38 + 6 + 9 + 606 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1219406400 + 19289664 = 34920^2 + 4392^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 382002 + ... + 385230.

Almost surely, 2^1238696064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1238696064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1893571350).

1238696064 is an abundant number, since it is smaller than the sum of its proper divisors (2548446636).

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

1238696064 is an equidigital number, since it uses as much as digits as its factorization.

1238696064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3292 (or 3271 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 1238696064 is about 35195.1142063781. The cubic root of 1238696064 is about 1073.9603618216.

The spelling of 1238696064 in words is "one billion, two hundred thirty-eight million, six hundred ninety-six thousand, sixty-four".