1011004445 has 64 divisors (see below), whose sum is σ = 1436133888. Its totient is φ = 675840000.

The previous prime is 1011004417. The next prime is 1011004517. The reversal of 1011004445 is 5444001101.

It is not a de Polignac number, because 1011004445 - 2²⁴ = 994227229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5238269 + ... + 5238461.

It is an arithmetic number, because the mean of its divisors is an integer number (22439592).

Almost surely, 2^1011004445 is an apocalyptic number.

It is an amenable number.

1011004445 is a deficient number, since it is larger than the sum of its proper divisors (425129443).

1011004445 is a wasteful number, since it uses less digits than its factorization.

1011004445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1011004445 is about 31796.2960893246. The cubic root of 1011004445 is about 1003.6547746826.

Adding to 1011004445 its reverse (5444001101), we get a palindrome (6455005546).

The spelling of 1011004445 in words is "one billion, eleven million, four thousand, four hundred forty-five".