1288157364 has 192 divisors, whose sum is σ = 3877350400. Its totient is φ = 366436224.

The previous prime is 1288157357. The next prime is 1288157411. The reversal of 1288157364 is 4637518821.

1288157364 is a `hidden beast` number, since 1 + 288 + 1 + 5 + 7 + 364 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1146507 + ... + 1147629.

Almost surely, 2^1288157364 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 1288157364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1938675200).

1288157364 is an abundant number, since it is smaller than the sum of its proper divisors (2589193036).

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

1288157364 is a wasteful number, since it uses less digits than its factorization.

1288157364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211 (or 1203 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 1288157364 is about 35890.9092111080. The cubic root of 1288157364 is about 1088.0686738029.

The spelling of 1288157364 in words is "one billion, two hundred eighty-eight million, one hundred fifty-seven thousand, three hundred sixty-four".