7148864 has 28 divisors (see below), whose sum is σ = 14935200. Its totient is φ = 3385728.

The previous prime is 7148849. The next prime is 7148893. The reversal of 7148864 is 4688417.

It is a super-2 number, since 2×7148864² = 102212512980992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1724 + ... + 4155.

It is an arithmetic number, because the mean of its divisors is an integer number (533400).

Almost surely, 2^7148864 is an apocalyptic number.

It is an amenable number.

7148864 is an abundant number, since it is smaller than the sum of its proper divisors (7786336).

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

7148864 is a wasteful number, since it uses less digits than its factorization.

7148864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5910 (or 5900 counting only the distinct ones).

The product of its digits is 43008, while the sum is 38.

The square root of 7148864 is about 2673.7359630300. The cubic root of 7148864 is about 192.6396490466.

The spelling of 7148864 in words is "seven million, one hundred forty-eight thousand, eight hundred sixty-four".