72493370 has 8 divisors (see below), whose sum is σ = 130488084. Its totient is φ = 28997344.

The previous prime is 72493361. The next prime is 72493373. The reversal of 72493370 is 7339427.

It can be written as a sum of positive squares in 2 ways, for example, as 72471169 + 22201 = 8513^2 + 149^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72493370.

It is not an unprimeable number, because it can be changed into a prime (72493373) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 3624659 + ... + 3624678.

Almost surely, 2^72493370 is an apocalyptic number.

72493370 is a deficient number, since it is larger than the sum of its proper divisors (57994714).

72493370 is a wasteful number, since it uses less digits than its factorization.

72493370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7249344.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 72493370 is about 8514.3038470564. The cubic root of 72493370 is about 416.9648347568.

The spelling of 72493370 in words is "seventy-two million, four hundred ninety-three thousand, three hundred seventy".