1000945044 has 36 divisors (see below), whose sum is σ = 2760182880. Its totient is φ = 303316560.

The previous prime is 1000945009. The next prime is 1000945067. The reversal of 1000945044 is 4405490001.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1000945044² = 2003781962216323872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1000944999 and 1000945017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1263424 + ... + 1264215.

Almost surely, 2^1000945044 is an apocalyptic number.

It is an amenable number.

1000945044 is an abundant number, since it is smaller than the sum of its proper divisors (1759237836).

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

1000945044 is a wasteful number, since it uses less digits than its factorization.

1000945044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527660 (or 2527655 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1000945044 is about 31637.7155306764. The cubic root of 1000945044 is about 1000.3149154845.

The spelling of 1000945044 in words is "one billion, nine hundred forty-five thousand, forty-four".