7148928 has 32 divisors (see below), whose sum is σ = 18990360. Its totient is φ = 2382848.

The previous prime is 7148927. The next prime is 7148951. The reversal of 7148928 is 8298417.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×7148928² = 102214343098368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7148923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8925 + ... + 9692.

Almost surely, 2^7148928 is an apocalyptic number.

It is an amenable number.

7148928 is an abundant number, since it is smaller than the sum of its proper divisors (11841432).

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

7148928 is a wasteful number, since it uses less digits than its factorization.

7148928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18634 (or 18622 counting only the distinct ones).

The product of its digits is 32256, while the sum is 39.

The square root of 7148928 is about 2673.7479312755. The cubic root of 7148928 is about 192.6402239119.

It can be divided in two parts, 71489 and 28, that added together give a palindrome (71517).

The spelling of 7148928 in words is "seven million, one hundred forty-eight thousand, nine hundred twenty-eight".