1162887620 has 24 divisors (see below), whose sum is σ = 2445538200. Its totient is φ = 464493312.

The previous prime is 1162887611. The next prime is 1162887623. The reversal of 1162887620 is 267882611.

It can be written as a sum of positive squares in 4 ways, for example, as 185449924 + 977437696 = 13618^2 + 31264^2 .

It is not an unprimeable number, because it can be changed into a prime (1162887623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26825 + ... + 55184.

It is an arithmetic number, because the mean of its divisors is an integer number (101897425).

Almost surely, 2^1162887620 is an apocalyptic number.

1162887620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1162887620 is an abundant number, since it is smaller than the sum of its proper divisors (1282650580).

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

1162887620 is a wasteful number, since it uses less digits than its factorization.

1162887620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82727 (or 82725 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 1162887620 is about 34101.1381041748. The cubic root of 1162887620 is about 1051.5887121301.

The spelling of 1162887620 in words is "one billion, one hundred sixty-two million, eight hundred eighty-seven thousand, six hundred twenty".