1005197690 has 16 divisors (see below), whose sum is σ = 2067835392. Its totient is φ = 344639184.

The previous prime is 1005197689. The next prime is 1005197693. The reversal of 1005197690 is 967915001.

It is a super-2 number, since 2×1005197690² = 2020844791962672200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1005197693) 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, 7179914 + ... + 7180053.

It is an arithmetic number, because the mean of its divisors is an integer number (129239712).

Almost surely, 2^1005197690 is an apocalyptic number.

1005197690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1005197690 is an abundant number, since it is smaller than the sum of its proper divisors (1062637702).

1005197690 is a wasteful number, since it uses less digits than its factorization.

1005197690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14359981.

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 1005197690 is about 31704.8527831308. The cubic root of 1005197690 is about 1001.7295701957.

The spelling of 1005197690 in words is "one billion, five million, one hundred ninety-seven thousand, six hundred ninety".