1064198540 has 24 divisors (see below), whose sum is σ = 2238298272. Its totient is φ = 425016320.

The previous prime is 1064198533. The next prime is 1064198549. The reversal of 1064198540 is 458914601.

It is a super-2 number, since 2×1064198540² = 2265037065076263200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1064198494 and 1064198503.

It is not an unprimeable number, because it can be changed into a prime (1064198549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28181 + ... + 54060.

It is an arithmetic number, because the mean of its divisors is an integer number (93262428).

Almost surely, 2^1064198540 is an apocalyptic number.

1064198540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1064198540 is an abundant number, since it is smaller than the sum of its proper divisors (1174099732).

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

1064198540 is a wasteful number, since it uses less digits than its factorization.

1064198540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82897 (or 82895 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 1064198540 is about 32622.0560357559. The cubic root of 1064198540 is about 1020.9572392744.

The spelling of 1064198540 in words is "one billion, sixty-four million, one hundred ninety-eight thousand, five hundred forty".