752226642 has 32 divisors (see below), whose sum is σ = 1769947200. Its totient is φ = 235992384.

The previous prime is 752226637. The next prime is 752226667. The reversal of 752226642 is 246622257.

752226642 is a `hidden beast` number, since 7 + 5 + 2 + 2 + 2 + 6 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 752226597 and 752226606.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 408792 + ... + 410627.

It is an arithmetic number, because the mean of its divisors is an integer number (55310850).

Almost surely, 2^752226642 is an apocalyptic number.

752226642 is an abundant number, since it is smaller than the sum of its proper divisors (1017720558).

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

752226642 is a wasteful number, since it uses less digits than its factorization.

752226642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819447 (or 819441 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 752226642 is about 27426.7504819656. The cubic root of 752226642 is about 909.4585363158.

Adding to 752226642 its reverse (246622257), we get a palindrome (998848899).

The spelling of 752226642 in words is "seven hundred fifty-two million, two hundred twenty-six thousand, six hundred forty-two".