1005554742 has 16 divisors (see below), whose sum is σ = 2057880000. Its totient is φ = 327389832.

The previous prime is 1005554723. The next prime is 1005554789. The reversal of 1005554742 is 2474555001.

It is a super-2 number, since 2×1005554742² = 2022280678317373128, 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 7 ways as a sum of consecutive naturals, for example, 1948492 + ... + 1949007.

It is an arithmetic number, because the mean of its divisors is an integer number (128617500).

Almost surely, 2^1005554742 is an apocalyptic number.

1005554742 is an abundant number, since it is smaller than the sum of its proper divisors (1052325258).

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

1005554742 is a wasteful number, since it uses less digits than its factorization.

1005554742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897547.

The product of its (nonzero) digits is 28000, while the sum is 33.

The square root of 1005554742 is about 31710.4831562056. The cubic root of 1005554742 is about 1001.8481628565.

The spelling of 1005554742 in words is "one billion, five million, five hundred fifty-four thousand, seven hundred forty-two".