1026645000 has 80 divisors (see below), whose sum is σ = 3207285840. Its totient is φ = 273768000.

The previous prime is 1026644999. The next prime is 1026645007. The reversal of 1026645000 is 5466201.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1026645007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19222 + ... + 49221.

It is an arithmetic number, because the mean of its divisors is an integer number (40091073).

Almost surely, 2^1026645000 is an apocalyptic number.

1026645000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1026645000 is an abundant number, since it is smaller than the sum of its proper divisors (2180640840).

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

1026645000 is an equidigital number, since it uses as much as digits as its factorization.

1026645000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68472 (or 68453 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1026645000 is about 32041.3014716943. The cubic root of 1026645000 is about 1008.8039300210.

The spelling of 1026645000 in words is "one billion, twenty-six million, six hundred forty-five thousand".