1020744064 has 32 divisors (see below), whose sum is σ = 2036228040. Its totient is φ = 509690880.

The previous prime is 1020744061. The next prime is 1020744083. The reversal of 1020744064 is 4604470201.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020744061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98892 + ... + 108724.

Almost surely, 2^1020744064 is an apocalyptic number.

It is an amenable number.

1020744064 is a deficient number, since it is larger than the sum of its proper divisors (1015483976).

1020744064 is an frugal number, since it uses more digits than its factorization.

1020744064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10658 (or 10646 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 1020744064 is about 31949.0854955193. The cubic root of 1020744064 is about 1006.8674186026.

The spelling of 1020744064 in words is "one billion, twenty million, seven hundred forty-four thousand, sixty-four".