72210752 has 14 divisors (see below), whose sum is σ = 143293338. Its totient is φ = 36105344.

The previous prime is 72210709. The next prime is 72210821. The reversal of 72210752 is 25701227.

It can be written as a sum of positive squares in only one way, i.e., 64899136 + 7311616 = 8056^2 + 2704^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564083 + ... + 564210.

Almost surely, 2^72210752 is an apocalyptic number.

It is an amenable number.

72210752 is a deficient number, since it is larger than the sum of its proper divisors (71082586).

72210752 is a wasteful number, since it uses less digits than its factorization.

72210752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128305 (or 1128295 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 72210752 is about 8497.6909804958. The cubic root of 72210752 is about 416.4222783042.

Adding to 72210752 its reverse (25701227), we get a palindrome (97911979).

The spelling of 72210752 in words is "seventy-two million, two hundred ten thousand, seven hundred fifty-two".