1162708638 has 128 divisors (see below), whose sum is σ = 2943682560. Its totient is φ = 298045440.

The previous prime is 1162708637. The next prime is 1162708663. The reversal of 1162708638 is 8368072611.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1162708638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1162708633) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3450006 + ... + 3450342.

It is an arithmetic number, because the mean of its divisors is an integer number (22997520).

Almost surely, 2^1162708638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1162708638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1471841280).

1162708638 is an abundant number, since it is smaller than the sum of its proper divisors (1780973922).

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

1162708638 is a wasteful number, since it uses less digits than its factorization.

1162708638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 1162708638 is about 34098.5137212753. The cubic root of 1162708638 is about 1051.5347587631.

The spelling of 1162708638 in words is "one billion, one hundred sixty-two million, seven hundred eight thousand, six hundred thirty-eight".