7263128 has 8 divisors (see below), whose sum is σ = 13618380. Its totient is φ = 3631560.

The previous prime is 7263127. The next prime is 7263143. The reversal of 7263128 is 8213627.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7263128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7263127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 453938 + ... + 453953.

Almost surely, 2^7263128 is an apocalyptic number.

It is an amenable number.

7263128 is a deficient number, since it is larger than the sum of its proper divisors (6355252).

7263128 is a wasteful number, since it uses less digits than its factorization.

7263128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907897 (or 907893 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 7263128 is about 2695.0191093942. The cubic root of 7263128 is about 193.6605819785.

The spelling of 7263128 in words is "seven million, two hundred sixty-three thousand, one hundred twenty-eight".