7149442928 has 10 divisors (see below), whose sum is σ = 13852045704. Its totient is φ = 3574721456.

The previous prime is 7149442849. The next prime is 7149442967. The reversal of 7149442928 is 8292449417.

It is a super-2 number, since 2×7149442928² (a number of 21 digits) 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 (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223420076 + ... + 223420107.

Almost surely, 2^7149442928 is an apocalyptic number.

It is an amenable number.

7149442928 is a deficient number, since it is larger than the sum of its proper divisors (6702602776).

7149442928 is a wasteful number, since it uses less digits than its factorization.

7149442928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446840191 (or 446840185 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 50.

The square root of 7149442928 is about 84554.3785264844. The cubic root of 7149442928 is about 1926.4484900925.

The spelling of 7149442928 in words is "seven billion, one hundred forty-nine million, four hundred forty-two thousand, nine hundred twenty-eight".