7364224638 has 12 divisors (see below), whose sum is σ = 15955820088. Its totient is φ = 2454741540.

The previous prime is 7364224631. The next prime is 7364224639. The reversal of 7364224638 is 8364224637.

7364224638 is a `hidden beast` number, since 7 + 3 + 6 + 4 + 2 + 2 + 4 + 638 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 7364224593 and 7364224602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7364224631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 204561778 + ... + 204561813.

It is an arithmetic number, because the mean of its divisors is an integer number (1329651674).

Almost surely, 2^7364224638 is an apocalyptic number.

7364224638 is an abundant number, since it is smaller than the sum of its proper divisors (8591595450).

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

7364224638 is a wasteful number, since it uses less digits than its factorization.

7364224638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409123599 (or 409123596 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 45.

The square root of 7364224638 is about 85815.0606711899. The cubic root of 7364224638 is about 1945.5497583985.

Subtracting 7364224638 from its reverse (8364224637), we obtain a palindrome (999999999).

The spelling of 7364224638 in words is "seven billion, three hundred sixty-four million, two hundred twenty-four thousand, six hundred thirty-eight".