1197644058 has 48 divisors (see below), whose sum is σ = 2810041416. Its totient is φ = 366456960.

The previous prime is 1197644053. The next prime is 1197644099. The reversal of 1197644058 is 8504467911.

It can be written as a sum of positive squares in 4 ways, for example, as 359367849 + 838276209 = 18957^2 + 28953^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1197644053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28216 + ... + 56492.

Almost surely, 2^1197644058 is an apocalyptic number.

1197644058 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1197644058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1405020708).

1197644058 is an abundant number, since it is smaller than the sum of its proper divisors (1612397358).

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

1197644058 is a wasteful number, since it uses less digits than its factorization.

1197644058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28479 (or 28476 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1197644058 is about 34606.9943508534. The cubic root of 1197644058 is about 1061.9626796976.

The spelling of 1197644058 in words is "one billion, one hundred ninety-seven million, six hundred forty-four thousand, fifty-eight".