72330652 has 6 divisors (see below), whose sum is σ = 126578648. Its totient is φ = 36165324.

The previous prime is 72330649. The next prime is 72330659. The reversal of 72330652 is 25603327.

It is a self number, because there is not a number n which added to its sum of digits gives 72330652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72330659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9041328 + ... + 9041335.

Almost surely, 2^72330652 is an apocalyptic number.

It is an amenable number.

72330652 is a deficient number, since it is larger than the sum of its proper divisors (54247996).

72330652 is a wasteful number, since it uses less digits than its factorization.

72330652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18082667 (or 18082665 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 72330652 is about 8504.7429120462. The cubic root of 72330652 is about 416.6526291449.

Adding to 72330652 its reverse (25603327), we get a palindrome (97933979).

It can be divided in two parts, 723 and 30652, that added together give a triangular number (31375 = T₂₅₀).

The spelling of 72330652 in words is "seventy-two million, three hundred thirty thousand, six hundred fifty-two".