7238864 has 20 divisors (see below), whose sum is σ = 14509860. Its totient is φ = 3494400.

The previous prime is 7238863. The next prime is 7238879. The reversal of 7238864 is 4688327.

It can be written as a sum of positive squares in 2 ways, for example, as 5569600 + 1669264 = 2360^2 + 1292^2 .

It is a d-powerful number, because it can be written as 7⁷ + 2²² + 3⁶ + 8⁶ + 8⁶ + 6⁸ + 4⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7238863) 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, 7337 + ... + 8264.

It is an arithmetic number, because the mean of its divisors is an integer number (725493).

Almost surely, 2^7238864 is an apocalyptic number.

It is an amenable number.

7238864 is an abundant number, since it is smaller than the sum of its proper divisors (7270996).

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

7238864 is a wasteful number, since it uses less digits than its factorization.

7238864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15638 (or 15632 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 7238864 is about 2690.5137055960. The cubic root of 7238864 is about 193.4446868097. Note that the first 3 decimals are identical.

The spelling of 7238864 in words is "seven million, two hundred thirty-eight thousand, eight hundred sixty-four".