1005554774 has 12 divisors (see below), whose sum is σ = 1754590644. Its totient is φ = 430952004.

The previous prime is 1005554723. The next prime is 1005554789. The reversal of 1005554774 is 4774555001.

It is a super-2 number, since 2×1005554774² = 2022280807028382152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5130284 + ... + 5130479.

It is an arithmetic number, because the mean of its divisors is an integer number (146215887).

Almost surely, 2^1005554774 is an apocalyptic number.

1005554774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1005554774 is a deficient number, since it is larger than the sum of its proper divisors (749035870).

1005554774 is a wasteful number, since it uses less digits than its factorization.

1005554774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10260779 (or 10260772 counting only the distinct ones).

The product of its (nonzero) digits is 98000, while the sum is 38.

The square root of 1005554774 is about 31710.4836607706. The cubic root of 1005554774 is about 1001.8481734838.

The spelling of 1005554774 in words is "one billion, five million, five hundred fifty-four thousand, seven hundred seventy-four".