1005590064 has 80 divisors (see below), whose sum is σ = 2631831552. Its totient is φ = 330833664.

The previous prime is 1005590039. The next prime is 1005590077. The reversal of 1005590064 is 4600955001.

It is a super-2 number, since 2×1005590064² = 2022422753631048192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1785847 + ... + 1786409.

Almost surely, 2^1005590064 is an apocalyptic number.

It is an amenable number.

1005590064 is an abundant number, since it is smaller than the sum of its proper divisors (1626241488).

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

1005590064 is a wasteful number, since it uses less digits than its factorization.

1005590064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994 (or 988 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1005590064 is about 31711.0400964711. The cubic root of 1005590064 is about 1001.8598933189.

The spelling of 1005590064 in words is "one billion, five million, five hundred ninety thousand, sixty-four".