4045554491 has 16 divisors (see below), whose sum is σ = 4594652640. Its totient is φ = 3528295680.

The previous prime is 4045554463. The next prime is 4045554493. The reversal of 4045554491 is 1944555404.

It is a cyclic number.

It is not a de Polignac number, because 4045554491 - 2⁶ = 4045554427 is a prime.

It is a super-2 number, since 2×4045554491² = 32733022279300538162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4045554493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9695 + ... + 90471.

It is an arithmetic number, because the mean of its divisors is an integer number (287165790).

Almost surely, 2^4045554491 is an apocalyptic number.

4045554491 is a deficient number, since it is larger than the sum of its proper divisors (549098149).

4045554491 is a wasteful number, since it uses less digits than its factorization.

4045554491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80974.

The product of its (nonzero) digits is 288000, while the sum is 41.

The square root of 4045554491 is about 63604.6734996730. The cubic root of 4045554491 is about 1593.4044231872.

The spelling of 4045554491 in words is "four billion, forty-five million, five hundred fifty-four thousand, four hundred ninety-one".